diff --git a/PPOCRLabel/PPOCRLabel.py b/PPOCRLabel/PPOCRLabel.py
index f54542b189bc772a7650f619c7c617e5fcb929db..dd9d7701095bf396621ca26a8128064ef9cb2fe9 100644
--- a/PPOCRLabel/PPOCRLabel.py
+++ b/PPOCRLabel/PPOCRLabel.py
@@ -885,10 +885,16 @@ class MainWindow(QMainWindow, WindowMixin):
             self.updateComboBox()
 
     def updateBoxlist(self):
-        for shape in self.canvas.selectedShapes+[self.canvas.hShape]:
-            item = self.shapesToItemsbox[shape]  # listitem
-            text = [(int(p.x()), int(p.y())) for p in shape.points]
-            item.setText(str(text))
+        if self.canvas.hShape != None:
+            for shape in self.canvas.selectedShapes + [self.canvas.hShape]:
+                item = self.shapesToItemsbox[shape]  # listitem
+                text = [(int(p.x()), int(p.y())) for p in shape.points]
+                item.setText(str(text))
+        else:
+            for shape in self.canvas.selectedShapes:
+                item = self.shapesToItemsbox[shape]  # listitem
+                text = [(int(p.x()), int(p.y())) for p in shape.points]
+                item.setText(str(text))
         self.actions.undo.setEnabled(True)
         self.setDirty()
 
diff --git a/PPOCRLabel/libs/canvas.py b/PPOCRLabel/libs/canvas.py
index 33d208069e3b438f346273dd1b625056ba20789b..dbbcca70ffdbafe7613ea8ed6499990660955257 100644
--- a/PPOCRLabel/libs/canvas.py
+++ b/PPOCRLabel/libs/canvas.py
@@ -709,43 +709,45 @@ class Canvas(QWidget):
             self.update()
         elif key == Qt.Key_Return and self.canCloseShape():
             self.finalise()
-        elif key == Qt.Key_Left and self.selectedShape:
+        elif key == Qt.Key_Left and self.selectedShapes:
              self.moveOnePixel('Left')
-        elif key == Qt.Key_Right and self.selectedShape:
+        elif key == Qt.Key_Right and self.selectedShapes:
              self.moveOnePixel('Right')
-        elif key == Qt.Key_Up and self.selectedShape:
+        elif key == Qt.Key_Up and self.selectedShapes:
              self.moveOnePixel('Up')
-        elif key == Qt.Key_Down and self.selectedShape:
+        elif key == Qt.Key_Down and self.selectedShapes:
              self.moveOnePixel('Down')
 
     def moveOnePixel(self, direction):
         # print(self.selectedShape.points)
-        if direction == 'Left' and not self.moveOutOfBound(QPointF(-1.0, 0)):
-            # print("move Left one pixel")
-            self.selectedShape.points[0] += QPointF(-1.0, 0)
-            self.selectedShape.points[1] += QPointF(-1.0, 0)
-            self.selectedShape.points[2] += QPointF(-1.0, 0)
-            self.selectedShape.points[3] += QPointF(-1.0, 0)
-        elif direction == 'Right' and not self.moveOutOfBound(QPointF(1.0, 0)):
-            # print("move Right one pixel")
-            self.selectedShape.points[0] += QPointF(1.0, 0)
-            self.selectedShape.points[1] += QPointF(1.0, 0)
-            self.selectedShape.points[2] += QPointF(1.0, 0)
-            self.selectedShape.points[3] += QPointF(1.0, 0)
-        elif direction == 'Up' and not self.moveOutOfBound(QPointF(0, -1.0)):
-            # print("move Up one pixel")
-            self.selectedShape.points[0] += QPointF(0, -1.0)
-            self.selectedShape.points[1] += QPointF(0, -1.0)
-            self.selectedShape.points[2] += QPointF(0, -1.0)
-            self.selectedShape.points[3] += QPointF(0, -1.0)
-        elif direction == 'Down' and not self.moveOutOfBound(QPointF(0, 1.0)):
-            # print("move Down one pixel")
-            self.selectedShape.points[0] += QPointF(0, 1.0)
-            self.selectedShape.points[1] += QPointF(0, 1.0)
-            self.selectedShape.points[2] += QPointF(0, 1.0)
-            self.selectedShape.points[3] += QPointF(0, 1.0)
-        self.shapeMoved.emit()
-        self.repaint()
+        for i in range(len(self.selectedShapes)):
+            self.selectedShape = self.selectedShapes[i]
+            if direction == 'Left' and not self.moveOutOfBound(QPointF(-1.0, 0)):
+                # print("move Left one pixel")
+                self.selectedShape.points[0] += QPointF(-1.0, 0)
+                self.selectedShape.points[1] += QPointF(-1.0, 0)
+                self.selectedShape.points[2] += QPointF(-1.0, 0)
+                self.selectedShape.points[3] += QPointF(-1.0, 0)
+            elif direction == 'Right' and not self.moveOutOfBound(QPointF(1.0, 0)):
+                # print("move Right one pixel")
+                self.selectedShape.points[0] += QPointF(1.0, 0)
+                self.selectedShape.points[1] += QPointF(1.0, 0)
+                self.selectedShape.points[2] += QPointF(1.0, 0)
+                self.selectedShape.points[3] += QPointF(1.0, 0)
+            elif direction == 'Up' and not self.moveOutOfBound(QPointF(0, -1.0)):
+                # print("move Up one pixel")
+                self.selectedShape.points[0] += QPointF(0, -1.0)
+                self.selectedShape.points[1] += QPointF(0, -1.0)
+                self.selectedShape.points[2] += QPointF(0, -1.0)
+                self.selectedShape.points[3] += QPointF(0, -1.0)
+            elif direction == 'Down' and not self.moveOutOfBound(QPointF(0, 1.0)):
+                # print("move Down one pixel")
+                self.selectedShape.points[0] += QPointF(0, 1.0)
+                self.selectedShape.points[1] += QPointF(0, 1.0)
+                self.selectedShape.points[2] += QPointF(0, 1.0)
+                self.selectedShape.points[3] += QPointF(0, 1.0)
+            self.shapeMoved.emit()
+            self.repaint()
 
     def moveOutOfBound(self, step):
         points = [p1+p2 for p1, p2 in zip(self.selectedShape.points, [step]*4)]