diff --git a/pyecharts/custom/grid.py b/pyecharts/custom/grid.py
index a7c0fd59..b3e99d59 100644
--- a/pyecharts/custom/grid.py
+++ b/pyecharts/custom/grid.py
@@ -56,19 +56,19 @@ class Grid(object):
                 chart._option.get('legend')[0],
                 chart._option.get('title')[0]
             )
-            _index, _index_once, _xaxis, _yaxis, _legned, _title = self.__custom(_series)
-            self._chart._option.get('legend').append(_legned)
+            _index, _index_once, _xaxis, _yaxis, _legend, _title = self.__custom(_series)
+            self._chart._option.get('legend').append(_legend)
             self._chart._option.get('title').append(_title)
-            if _xaxis and _yaxis is not None:
-                try:
-                    _xaxis[0].update(gridIndex=_index-1)
-                    _yaxis[0].update(gridIndex=_index-1)
-                    self._chart._option.get('xAxis').append(_xaxis[0])
-                    self._chart._option.get('yAxis').append(_yaxis[0])
-                except:
-                    pass
 
-                # indexflag is the only identify for every series
+            if _xaxis and _yaxis is not None:
+                for _x in _xaxis:
+                    _x.update(gridIndex=_index - 1)
+                    self._chart._option.get('xAxis').append(_x)
+                for _y in _yaxis:
+                    _y.update(gridIndex=_index - 1)
+                    self._chart._option.get('yAxis').append(_y)
+
+                # series id is the only identify for every series
                 _flag = self._chart._option.get('series')[0].get('seriesId')
                 _series_index = 0
                 for s in self._chart._option.get('series'):
diff --git a/pyecharts/custom/overlap.py b/pyecharts/custom/overlap.py
index 859b742f..ccf0f9d4 100644
--- a/pyecharts/custom/overlap.py
+++ b/pyecharts/custom/overlap.py
@@ -12,7 +12,11 @@ class Overlap(object):
         self._js_dependencies = set()
         self._page_title = page_title
 
-    def add(self, chart, xaxis_index=0, yaxis_index=0, is_add_xaxis=False, is_add_yaxis=False):
+    def add(self, chart,
+            xaxis_index=0,
+            yaxis_index=0,
+            is_add_xaxis=False,
+            is_add_yaxis=False):
         """
 
         :param chart:
@@ -29,6 +33,7 @@ class Overlap(object):
         """
         if self._chart is None:
             self._chart = chart
+            self._series_id = chart._option.get('series')[0].get('seriesId')
             self._js_dependencies = chart._js_dependencies
         else:
             _series = (
@@ -43,6 +48,7 @@ class Overlap(object):
             )
             self.__custom(_series)
             self._js_dependencies = self._js_dependencies.union(chart._js_dependencies)
+        self._option = self._chart._option
 
     def __custom(self, series):
         """ Appends the data for the series of the chart type
@@ -55,7 +61,8 @@ class Overlap(object):
         for n in _name:
             self._chart._option.get('legend')[0].get('data').append(n)
         for s in _series:
-            s.update(xAxisIndex=_xaxis_index, yAxisIndex=_yaxis_index)
+            s.update(xAxisIndex=_xaxis_index, yAxisIndex=_yaxis_index,
+                     seriesId=self._series_id)
             self._chart._option.get('series').append(s)
 
         if is_add_xaxis:
diff --git a/pyecharts/custom/page.py b/pyecharts/custom/page.py
index 887044e1..7ec63ad7 100644
--- a/pyecharts/custom/page.py
+++ b/pyecharts/custom/page.py
@@ -14,11 +14,6 @@ class Page(object):
     A composite object to present multiple charts vertically in a single page
     """
     def __init__(self, jshost=None, page_title=constants.PAGE_TITLE):
-        """
-
-        :param jshost:
-            custom javascript host for the particular chart only
-        """
         self.__charts = []
         self._page_title = page_title
         self._jshost = jshost if jshost else constants.CONFIGURATION['HOST']
diff --git a/test/test_grid.py b/test/test_grid.py
index 768f2764..771b88c1 100644
--- a/test/test_grid.py
+++ b/test/test_grid.py
@@ -222,3 +222,29 @@ def test_grid_inverse_yaxis():
     grid.add(line_top, grid_bottom='60%')
     grid.add(line_bottom, grid_top='50%')
     grid.render()
+
+
+def test_grid_add_overlap():
+    from pyecharts import Overlap
+
+    grid = Grid()
+
+    attr = ["{}月".format(i) for i in range(1, 13)]
+    v1 = [2.0, 4.9, 7.0, 23.2, 25.6, 76.7, 135.6, 162.2, 32.6, 20.0, 6.4, 3.3]
+    v2 = [2.6, 5.9, 9.0, 26.4, 28.7, 70.7, 175.6, 182.2, 48.7, 18.8, 6.0, 2.3]
+    v3 = [2.0, 2.2, 3.3, 4.5, 6.3, 10.2, 20.3, 23.4, 23.0, 16.5, 12.0, 6.2]
+
+    bar = Bar(width=1200, height=600, title="Overlap+Grid 示例", title_pos="40%")
+    bar.add("蒸发量", attr, v1)
+    bar.add("降水量", attr, v2, yaxis_formatter=" ml", yaxis_max=250,
+            legend_pos="85%", legend_orient="vertical", legend_top="45%")
+
+    line = Line()
+    line.add("平均温度", attr, v3, yaxis_formatter=" °C")
+
+    overlap = Overlap()
+    overlap.add(bar)
+    overlap.add(line, is_add_yaxis=True, yaxis_index=1)
+
+    grid.add(overlap, grid_right='20%')
+    grid.render()