diff --git a/src/chart/map/MapSeries.ts b/src/chart/map/MapSeries.ts
index b41f8c682d..90dc155168 100644
--- a/src/chart/map/MapSeries.ts
+++ b/src/chart/map/MapSeries.ts
@@ -37,7 +37,8 @@ import {
     CallbackDataParams,
     ComponentOnCalendarOptionMixin,
     ComponentOnMatrixOptionMixin,
-    RoamHostModel
+    RoamHostModel,
+    SOURCE_FORMAT_ORIGINAL
 } from '../../util/types';
 import { Dictionary, NullUndefined } from 'zrender/src/core/types';
 import GeoModel, { GeoCommonOptionMixin, GeoItemStyleOption } from '../../coord/geo/GeoModel';
@@ -165,7 +166,14 @@ class MapSeries extends SeriesModel<MapSeriesOption> implements RoamHostModel {
         // Complete data with missing regions. The consequent processes (like visual
         // map and render) can not be performed without a "full data". For example,
         // find `dataIndex` by name.
-        data.appendData(toAppendItems);
+        if (this.getSource().sourceFormat === SOURCE_FORMAT_ORIGINAL) {
+            data.appendData(toAppendItems);
+        }
+        else {
+            // A dataset can not hold `{name}` items, and `seriesLayoutBy: 'row'`
+            // can not be appended at all, so only add names to the store.
+            data.appendValues([], zrUtil.map(toAppendItems, item => item.name as string));
+        }
 
         return data;
     }
diff --git a/test/ut/spec/series/map.test.ts b/test/ut/spec/series/map.test.ts
new file mode 100644
index 0000000000..b7f73ea7f3
--- /dev/null
+++ b/test/ut/spec/series/map.test.ts
@@ -0,0 +1,85 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements.  See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership.  The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License.  You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied.  See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+
+import { registerMap } from '../../../../src/echarts';
+import { GeoJSON } from '../../../../src/coord/geo/geoTypes';
+import { createChart } from '../../core/utHelper';
+
+
+describe('map', function () {
+
+    function square(name: string, x: number): GeoJSON['features'][number] {
+        return {
+            type: 'Feature',
+            properties: { name },
+            geometry: {
+                type: 'Polygon',
+                coordinates: [[[x, 0], [x + 1, 0], [x + 1, 1], [x, 1], [x, 0]]]
+            }
+        };
+    }
+
+    registerMap('map_test_layout', {
+        type: 'FeatureCollection',
+        features: [square('A', 0), square('B', 1), square('C', 2)]
+    });
+
+    function getValuesByName(seriesLayoutBy: 'row' | 'column', source: (string | number)[][]) {
+        const chart = createChart();
+        try {
+            chart.setOption({
+                animation: false,
+                dataset: { source },
+                series: [{
+                    type: 'map',
+                    map: 'map_test_layout',
+                    seriesLayoutBy,
+                    encode: { itemName: 0, value: 1 }
+                }]
+            });
+            const data = (chart as any).getModel().getSeriesByIndex(0).getData();
+            const valueDim = data.mapDimension('value');
+            const result: Record<string, number> = {};
+            data.each(function (idx: number) {
+                result[data.getName(idx)] = data.get(valueDim, idx);
+            });
+            return result;
+        }
+        finally {
+            chart.dispose();
+        }
+    }
+
+    it('should read dataset in column layout and complete missing regions', function () {
+        expect(getValuesByName('column', [
+            ['name', 'val'],
+            ['A', 10],
+            ['B', 20]
+        ])).toEqual({ A: 10, B: 20, C: NaN });
+    });
+
+    it('should read dataset in row layout and complete missing regions', function () {
+        expect(getValuesByName('row', [
+            ['name', 'A', 'B'],
+            ['val', 10, 20]
+        ])).toEqual({ A: 10, B: 20, C: NaN });
+    });
+
+});