diff --git a/src/posedocument.cpp b/src/posedocument.cpp
index febe2914..18cdabbf 100644
--- a/src/posedocument.cpp
+++ b/src/posedocument.cpp
@@ -16,6 +16,26 @@ const float PoseDocument::m_groundPlaneHalfThickness = 0.005 / 4;
 const bool PoseDocument::m_hideRootAndVirtual = true;
 const float PoseDocument::m_outcomeScaleFactor = 0.5;
 
+void PoseDocument::setSideVisiableState(SkeletonSide side, bool visible)
+{
+    bool isSideVisible = m_hiddenSides.find(side) == m_hiddenSides.end();
+    if (isSideVisible == visible)
+        return;
+    if (visible)
+        m_hiddenSides.erase(side);
+    else
+        m_hiddenSides.insert(side);
+    emit sideVisibleStateChanged(side);
+    const QUuid partId = m_partIdMap[side];
+    partMap[partId].visible = visible;
+    emit partVisibleStateChanged(partId);
+}
+
+bool PoseDocument::isSideVisible(SkeletonSide side)
+{
+    return m_hiddenSides.find(side) == m_hiddenSides.end();
+}
+
 bool PoseDocument::hasPastableNodesInClipboard() const
 {
     const QClipboard *clipboard = QApplication::clipboard();
@@ -157,7 +177,7 @@ void PoseDocument::reset()
     partMap.clear();
     m_otherIds.clear();
     m_boneNameToIdsMap.clear();
-    m_bonesPartId = QUuid();
+    m_partIdMap.clear();
     emit cleanup();
     emit parametersChanged();
 }
@@ -275,16 +295,15 @@ void PoseDocument::fromParameters(const std::vector<RiggerBone> *rigBones,
             neckJoint1BoneDirection);
         
         std::map<QString, std::pair<QUuid, QUuid>> boneNameToIdsMap;
-        QUuid bonesPartId;
         parametersToNodes(&otherBones,
             &boneNameToIdsMap,
-            &bonesPartId,
+            &m_partIdMap,
             true);
     }
     
     parametersToNodes(&bones,
         &m_boneNameToIdsMap,
-        &m_bonesPartId,
+        &m_partIdMap,
         false);
     
     emit parametersChanged();
@@ -292,7 +311,7 @@ void PoseDocument::fromParameters(const std::vector<RiggerBone> *rigBones,
 
 void PoseDocument::parametersToNodes(const std::vector<RiggerBone> *rigBones,
     std::map<QString, std::pair<QUuid, QUuid>> *boneNameToIdsMap,
-    QUuid *bonesPartId,
+    std::map<SkeletonSide, QUuid> *m_partIdMap,
     bool isOther)
 {
     if (nullptr == rigBones || rigBones->empty()) {
@@ -302,9 +321,19 @@ void PoseDocument::parametersToNodes(const std::vector<RiggerBone> *rigBones,
     std::set<QUuid> newAddedNodeIds;
     std::set<QUuid> newAddedEdgeIds;
     
-    *bonesPartId = QUuid::createUuid();
-    auto &bonesPart = partMap[*bonesPartId];
-    bonesPart.id = *bonesPartId;
+    auto addPartIdOfSide = [=](SkeletonSide side) {
+        if (m_partIdMap->find(side) != m_partIdMap->end())
+            return;
+        QUuid partId = QUuid::createUuid();
+        auto &bonesPart = this->partMap[partId];
+        bonesPart.id = partId;
+        bonesPart.visible = this->m_hiddenSides.find(side) == this->m_hiddenSides.end();
+        qDebug() << SkeletonSideToDispName(side) << "partId:" << partId << " visible:" << bonesPart.visible;
+        (*m_partIdMap)[side] = partId;
+    };
+    addPartIdOfSide(SkeletonSide::Left);
+    addPartIdOfSide(SkeletonSide::None);
+    addPartIdOfSide(SkeletonSide::Right);
     
     //qDebug() << "rigBones size:" << rigBones->size();
     
@@ -319,13 +348,16 @@ void PoseDocument::parametersToNodes(const std::vector<RiggerBone> *rigBones,
     std::map<int, QUuid> boneIndexToHeadNodeIdMap;
     for (const auto &edgePair: edgePairs) {
         QUuid firstNodeId, secondNodeId;
+        SkeletonSide firstNodeSide = SkeletonSideFromBoneName((*rigBones)[edgePair.first].name);
+        SkeletonSide secondNodeSide = SkeletonSideFromBoneName((*rigBones)[edgePair.second].name);
         auto findFirst = boneIndexToHeadNodeIdMap.find(edgePair.first);
         if (findFirst == boneIndexToHeadNodeIdMap.end()) {
             const auto &bone = (*rigBones)[edgePair.first];
             if (!bone.name.startsWith("Virtual_") || !m_hideRootAndVirtual) {
                 SkeletonNode node;
-                node.partId = *bonesPartId;
+                node.partId = (*m_partIdMap)[firstNodeSide];
                 node.id = QUuid::createUuid();
+                partMap[node.partId].nodeIds.push_back(node.id);
                 node.setRadius(m_nodeRadius);
                 node.x = fromOutcomeX(bone.headPosition.x());
                 node.y = fromOutcomeY(bone.headPosition.y());
@@ -343,8 +375,9 @@ void PoseDocument::parametersToNodes(const std::vector<RiggerBone> *rigBones,
             const auto &bone = (*rigBones)[edgePair.second];
             if (!bone.name.startsWith("Virtual_") || !m_hideRootAndVirtual) {
                 SkeletonNode node;
-                node.partId = *bonesPartId;
+                node.partId = (*m_partIdMap)[secondNodeSide];
                 node.id = QUuid::createUuid();
+                partMap[node.partId].nodeIds.push_back(node.id);
                 node.setRadius(m_nodeRadius);
                 node.x = fromOutcomeX(bone.headPosition.x());
                 node.y = fromOutcomeY(bone.headPosition.y());
@@ -361,8 +394,13 @@ void PoseDocument::parametersToNodes(const std::vector<RiggerBone> *rigBones,
         if (firstNodeId.isNull() || secondNodeId.isNull())
             continue;
         
+        if (firstNodeSide != secondNodeSide) {
+            qDebug() << "First node side:" << SkeletonSideToDispName(firstNodeSide) << "is different with second node side:" << SkeletonSideToDispName(secondNodeSide);
+            continue;
+        }
+        
         SkeletonEdge edge;
-        edge.partId = *bonesPartId;
+        edge.partId = (*m_partIdMap)[firstNodeSide];
         edge.id = QUuid::createUuid();
         edge.nodeIds.push_back(firstNodeId);
         edge.nodeIds.push_back(secondNodeId);
@@ -377,11 +415,14 @@ void PoseDocument::parametersToNodes(const std::vector<RiggerBone> *rigBones,
         if (m_hideRootAndVirtual && bone.name.startsWith("Virtual_"))
             continue;
         if (bone.children.empty()) {
+            SkeletonSide side = SkeletonSideFromBoneName(bone.name);
+            
             const QUuid &firstNodeId = boneIndexToHeadNodeIdMap[i];
             
             SkeletonNode node;
-            node.partId = *bonesPartId;
+            node.partId = (*m_partIdMap)[side];
             node.id = QUuid::createUuid();
+            partMap[node.partId].nodeIds.push_back(node.id);
             node.setRadius(m_nodeRadius / 2);
             node.x = fromOutcomeX(bone.tailPosition.x());
             node.y = fromOutcomeY(bone.tailPosition.y());
@@ -391,8 +432,9 @@ void PoseDocument::parametersToNodes(const std::vector<RiggerBone> *rigBones,
             (*boneNameToIdsMap)[bone.name] = {firstNodeId, node.id};
             
             SkeletonEdge edge;
-            edge.partId = *bonesPartId;
+            edge.partId = (*m_partIdMap)[side];
             edge.id = QUuid::createUuid();
+            partMap[node.partId].nodeIds.push_back(node.id);
             edge.nodeIds.push_back(firstNodeId);
             edge.nodeIds.push_back(node.id);
             edgeMap[edge.id] = edge;
@@ -426,6 +468,10 @@ void PoseDocument::parametersToNodes(const std::vector<RiggerBone> *rigBones,
     for (const auto &edgeIt: newAddedEdgeIds) {
         emit edgeAdded(edgeIt);
     }
+    
+    for (const auto &it: *m_partIdMap) {
+        emit partVisibleStateChanged(it.second);
+    }
 }
 
 void PoseDocument::moveNodeBy(QUuid nodeId, float x, float y, float z)
@@ -463,8 +509,6 @@ float PoseDocument::findFootBottomY() const
 {
     auto maxY = std::numeric_limits<float>::lowest();
     for (const auto &nodeIt: nodeMap) {
-        if (nodeIt.second.partId != m_bonesPartId)
-            continue;
         auto y = nodeIt.second.y + nodeIt.second.radius;
         if (y > maxY)
             maxY = y;
diff --git a/src/posedocument.h b/src/posedocument.h
index f2270e1e..6a1cbd79 100644
--- a/src/posedocument.h
+++ b/src/posedocument.h
@@ -21,6 +21,8 @@ signals:
     void edgeAdded(QUuid edgeId);
     void nodeOriginChanged(QUuid nodeId);
     void parametersChanged();
+    void sideVisibleStateChanged(SkeletonSide side);
+    void partVisibleStateChanged(QUuid partId);
     
 public:
     bool undoable() const override;
@@ -41,6 +43,8 @@ public:
     void fromParameters(const std::vector<RiggerBone> *rigBones,
         const std::map<QString, std::map<QString, QString>> &parameters);
     
+    bool isSideVisible(SkeletonSide side);
+    
 public slots:
     void saveHistoryItem();
     void clearHistories();
@@ -51,6 +55,7 @@ public slots:
     void moveNodeBy(QUuid nodeId, float x, float y, float z);
     void setNodeOrigin(QUuid nodeId, float x, float y, float z);
     void switchChainSide(const std::set<QUuid> nodeIds);
+    void setSideVisiableState(SkeletonSide side, bool visible);
     
 public:
     static const float m_nodeRadius;
@@ -63,7 +68,7 @@ private:
     float findFootBottomY() const;
     void parametersToNodes(const std::vector<RiggerBone> *rigBones,
         std::map<QString, std::pair<QUuid, QUuid>> *boneNameToIdsMap,
-        QUuid *bonesPartId,
+        std::map<SkeletonSide, QUuid> *m_partIdMap,
         bool isOther=false);
     void updateBonesFromParameters(std::vector<RiggerBone> *bones,
         const std::map<QString, std::map<QString, QString>> &parameters,
@@ -72,12 +77,13 @@ private:
         const QVector3D &neckJoint1BoneDirection);
 
     std::map<QString, std::pair<QUuid, QUuid>> m_boneNameToIdsMap;
-    QUuid m_bonesPartId;
+    std::map<SkeletonSide, QUuid> m_partIdMap;
     std::deque<PoseHistoryItem> m_undoItems;
     std::deque<PoseHistoryItem> m_redoItems;
     std::vector<RiggerBone> m_riggerBones;
     std::vector<std::map<QString, std::map<QString, QString>>> m_otherFramesParameters;
     std::set<QUuid> m_otherIds;
+    std::set<SkeletonSide> m_hiddenSides;
     
     static float fromOutcomeX(float x);
     static float toOutcomeX(float x);
diff --git a/src/poseeditwidget.cpp b/src/poseeditwidget.cpp
index cda592c1..3a3471bd 100644
--- a/src/poseeditwidget.cpp
+++ b/src/poseeditwidget.cpp
@@ -77,6 +77,7 @@ PoseEditWidget::PoseEditWidget(const Document *document, QWidget *parent) :
     connect(m_poseDocument, &PoseDocument::nodeAdded, graphicsWidget, &SkeletonGraphicsWidget::nodeAdded);
     connect(m_poseDocument, &PoseDocument::edgeAdded, graphicsWidget, &SkeletonGraphicsWidget::edgeAdded);
     connect(m_poseDocument, &PoseDocument::nodeOriginChanged, graphicsWidget, &SkeletonGraphicsWidget::nodeOriginChanged);
+    connect(m_poseDocument, &PoseDocument::partVisibleStateChanged, graphicsWidget, &SkeletonGraphicsWidget::partVisibleStateChanged);
     
     connect(m_poseDocument, &PoseDocument::parametersChanged, this, [&]() {
         m_currentParameters.clear();
@@ -94,6 +95,56 @@ PoseEditWidget::PoseEditWidget(const Document *document, QWidget *parent) :
     connect(opacitySlider, &QSlider::valueChanged, this, [=](int value) {
         graphicsWidget->setBackgroundBlur((float)value / 10);
     });
+    
+    auto updateSideVisibleButtonState = [=](QPushButton *button, SkeletonSide side) {
+        this->updateSideButtonState(button, m_poseDocument->isSideVisible(side));
+    };
+    
+    QPushButton *leftSideVisibleButton = new QPushButton(QChar('L'));
+    leftSideVisibleButton->setToolTip(tr("Toggle Left Side Visibility"));
+    initSideButton(leftSideVisibleButton);
+    updateSideVisibleButtonState(leftSideVisibleButton, SkeletonSide::Left);
+    connect(leftSideVisibleButton, &QPushButton::clicked, this, [=]() {
+        m_poseDocument->setSideVisiableState(SkeletonSide::Left, !m_poseDocument->isSideVisible(SkeletonSide::Left));
+    });
+    
+    QPushButton *middleSideVisibleButton = new QPushButton(QChar('M'));
+    middleSideVisibleButton->setToolTip(tr("Toggle Middle Side Visibility"));
+    initSideButton(middleSideVisibleButton);
+    updateSideVisibleButtonState(middleSideVisibleButton, SkeletonSide::None);
+    connect(middleSideVisibleButton, &QPushButton::clicked, this, [=]() {
+        m_poseDocument->setSideVisiableState(SkeletonSide::None, !m_poseDocument->isSideVisible(SkeletonSide::None));
+    });
+    
+    QPushButton *rightSideVisibleButton = new QPushButton(QChar('R'));
+    rightSideVisibleButton->setToolTip(tr("Toggle Right Side Visibility"));
+    initSideButton(rightSideVisibleButton);
+    updateSideVisibleButtonState(rightSideVisibleButton, SkeletonSide::Right);
+    connect(rightSideVisibleButton, &QPushButton::clicked, this, [=]() {
+        m_poseDocument->setSideVisiableState(SkeletonSide::Right, !m_poseDocument->isSideVisible(SkeletonSide::Right));
+    });
+    
+    connect(m_poseDocument, &PoseDocument::sideVisibleStateChanged, this, [=](SkeletonSide side) {
+        switch (side) {
+        case SkeletonSide::Left:
+            updateSideVisibleButtonState(leftSideVisibleButton, side);
+            break;
+        case SkeletonSide::None:
+            updateSideVisibleButtonState(middleSideVisibleButton, side);
+            break;
+        case SkeletonSide::Right:
+            updateSideVisibleButtonState(rightSideVisibleButton, side);
+            break;
+        }
+    });
+    
+    QHBoxLayout *sideButtonLayout = new QHBoxLayout;
+    sideButtonLayout->setSpacing(0);
+    sideButtonLayout->addStretch();
+    sideButtonLayout->addWidget(leftSideVisibleButton);
+    sideButtonLayout->addWidget(middleSideVisibleButton);
+    sideButtonLayout->addWidget(rightSideVisibleButton);
+    sideButtonLayout->addStretch();
 
     QHBoxLayout *sliderLayout = new QHBoxLayout;
     sliderLayout->addStretch();
@@ -106,6 +157,7 @@ PoseEditWidget::PoseEditWidget(const Document *document, QWidget *parent) :
     
     QVBoxLayout *previewLayout = new QVBoxLayout;
     previewLayout->addStretch();
+    previewLayout->addLayout(sideButtonLayout);
     previewLayout->addLayout(sliderLayout);
     previewLayout->addSpacing(20);
     
@@ -232,6 +284,27 @@ PoseEditWidget::PoseEditWidget(const Document *document, QWidget *parent) :
     m_poseDocument->saveHistoryItem();
 }
 
+void PoseEditWidget::initSideButton(QPushButton *button)
+{
+    QFont font;
+    font.setWeight(QFont::Light);
+    font.setPixelSize(Theme::toolIconFontSize);
+    font.setBold(false);
+
+    button->setFont(font);
+    button->setFixedSize(Theme::toolIconSize, Theme::toolIconSize);
+    button->setStyleSheet("QPushButton {color: #f7d9c8}");
+    button->setFocusPolicy(Qt::NoFocus);
+}
+
+void PoseEditWidget::updateSideButtonState(QPushButton *button, bool visible)
+{
+    if (visible)
+        button->setStyleSheet("QPushButton {color: #f7d9c8}");
+    else
+        button->setStyleSheet("QPushButton {color: #252525}");
+}
+
 void PoseEditWidget::showFramesSettingPopup(const QPoint &pos)
 {
     QMenu popupMenu;
diff --git a/src/poseeditwidget.h b/src/poseeditwidget.h
index 59df00cd..b60c664f 100644
--- a/src/poseeditwidget.h
+++ b/src/poseeditwidget.h
@@ -13,6 +13,7 @@
 #include "skeletongraphicswidget.h"
 #include "posedocument.h"
 #include "floatnumberwidget.h"
+#include "skeletonside.h"
 
 class PoseEditWidget : public QDialog
 {
@@ -77,6 +78,8 @@ private:
     QPushButton *m_framesSettingButton = nullptr;
     QSlider *m_currentFrameSlider = nullptr;
     static float m_defaultBlur;
+    void initSideButton(QPushButton *button);
+    void updateSideButtonState(QPushButton *button, bool visible);
 };
 
 #endif
diff --git a/src/skeletonside.cpp b/src/skeletonside.cpp
index 908f60a7..a7587e52 100644
--- a/src/skeletonside.cpp
+++ b/src/skeletonside.cpp
@@ -2,3 +2,12 @@
 #include "skeletonside.h"
 
 IMPL_SkeletonSideToDispName
+
+SkeletonSide SkeletonSideFromBoneName(const QString &boneName)
+{
+    if (boneName.startsWith("Left"))
+        return SkeletonSide::Left;
+    else if (boneName.startsWith("Right"))
+        return SkeletonSide::Right;
+    return SkeletonSide::None;
+}
diff --git a/src/skeletonside.h b/src/skeletonside.h
index 344954c5..b9a528f6 100644
--- a/src/skeletonside.h
+++ b/src/skeletonside.h
@@ -24,5 +24,6 @@ QString SkeletonSideToDispName(SkeletonSide side)                   \
             return "";                                              \
     }                                                               \
 }
+SkeletonSide SkeletonSideFromBoneName(const QString &boneName);
 
 #endif