diff --git a/src/store/actions/index.ts b/src/store/actions/index.ts
index dc4b56b..f2f8cc4 100644
--- a/src/store/actions/index.ts
+++ b/src/store/actions/index.ts
@@ -1,7 +1,7 @@
 import { IMapEditor } from "@map";
 import { Action } from "redux";
 import { Modal } from "antd";
-import { registerHotkey, downloadJSON } from "@utils";
+import { registerHotkey, downloadJSON, openUpload } from "@utils";
 
 import { getGeoJSON } from "../utils";
 import { OverlayTypes, EventTypes } from "@types";
@@ -49,16 +49,7 @@ export class EditorAction {
     }
 
     setInterval(() => {
-      const { mapOptions } = this;
-      sessionStorage.setItem(
-        "fine-geojson",
-        JSON.stringify({
-          ...mapOptions,
-          center: this.mapEditor?.getCenter(),
-          zoom: this.mapEditor?.getZoom(),
-        })
-      );
-      console.log("saved!");
+      this.saveTemp();
     }, 10000);
   }
   // ---------- public methods -------------
@@ -92,11 +83,6 @@ export class EditorAction {
     });
   }
 
-  saveGeoJSON() {
-    const geojson = getGeoJSON(this.mapOptions);
-    downloadJSON(geojson, "fine.geojson");
-  }
-
   selectOverlay(id: string) {
     const { selectedIds } = this.store.getState();
     if (selectedIds.indexOf(id) >= 0) {
@@ -108,12 +94,24 @@ export class EditorAction {
     }
   }
 
+  saveGeoJSON() {
+    const geojson = getGeoJSON(this.mapOptions);
+    downloadJSON(geojson, "fine.geojson");
+  }
+
   saveProject() {
-    //
+    const mapOptions = this._getMapOptions();
+    downloadJSON(mapOptions, "fine.fjd");
   }
+
   saveTemp() {
-    //
+    sessionStorage.setItem(
+      "fine-geojson",
+      JSON.stringify(this._getMapOptions())
+    );
+    console.log("saved!");
   }
+
   clearOverlays() {
     Modal.confirm({
       title: "确定移除所有覆盖物吗?",
@@ -124,16 +122,30 @@ export class EditorAction {
     });
   }
   openGeoJSON() {
-    //
+    openUpload({
+      accept: ".geojson",
+      onReady: (content) => {
+        this._openGeoJSON(JSON.parse(content));
+      },
+    });
   }
   openProject() {
-    //
+    openUpload({
+      accept: ".fjd",
+      onReady: (content) => {
+        this._openProject(JSON.parse(content));
+      },
+    });
   }
 
   showCommand() {
     //
   }
 
+  private _openGeoJSON(geojson: GeoJSON.FeatureCollection) {
+    console.log(geojson);
+  }
+
   private _openProject(options: IMapOptions) {
     this.mapEditor?.importProject(options);
     this.dispatch(
@@ -144,8 +156,20 @@ export class EditorAction {
     );
   }
 
+  private _getMapOptions(): IMapOptions {
+    const { mapOptions } = this;
+    return {
+      ...mapOptions,
+      center: this.mapEditor?.getCenter(),
+      zoom: this.mapEditor?.getZoom(),
+    };
+  }
+
   private _bindActions() {
     this.saveGeoJSON = this.saveGeoJSON.bind(this);
+    this.saveProject = this.saveProject.bind(this);
+    this.openGeoJSON = this.openGeoJSON.bind(this);
+    this.openProject = this.openProject.bind(this);
     this.createRectangle = this.createRectangle.bind(this);
     this.createPolygon = this.createPolygon.bind(this);
     this.createPolyline = this.createPolyline.bind(this);
diff --git a/src/store/utils/getGeoJSON.ts b/src/store/utils/getGeoJSON.ts
index 36c4597..096bbe1 100644
--- a/src/store/utils/getGeoJSON.ts
+++ b/src/store/utils/getGeoJSON.ts
@@ -6,70 +6,78 @@ const EarthRadius = 6378137;
 export function getGeoJSON(state: IMapOptions): GeoJSON.FeatureCollection {
   //
   const features: GeoJSON.Feature[] = [];
-  const { rectangles, polygons, polylines, circles } = state;
+  const { overlays } = state;
 
-  rectangles.forEach((rect) => {
-    const path = rect.path!;
+  overlays
+    .filter((overlay) => overlay.type === OverlayTypes.Rectangle)
+    .forEach((rect) => {
+      const path = rect.path!;
 
-    features.push({
-      type: "Feature",
-      geometry: {
-        type: "Polygon",
-        coordinates: [path],
-      },
-      properties: {
-        fineType: OverlayTypes.Rectangle,
-      },
+      features.push({
+        type: "Feature",
+        geometry: {
+          type: "Polygon",
+          coordinates: [path],
+        },
+        properties: {
+          fineType: OverlayTypes.Rectangle,
+        },
+      });
     });
-  });
 
-  polygons.forEach((polygon) => {
-    const path = polygon.path!;
-    features.push({
-      type: "Feature",
-      geometry: {
-        type: "Polygon",
-        coordinates: [path],
-      },
-      properties: {
-        fineType: OverlayTypes.Polygon,
-      },
+  overlays
+    .filter((overlay) => overlay.type === OverlayTypes.Polygon)
+    .forEach((polygon) => {
+      const path = polygon.path!;
+      features.push({
+        type: "Feature",
+        geometry: {
+          type: "Polygon",
+          coordinates: [path],
+        },
+        properties: {
+          fineType: OverlayTypes.Polygon,
+        },
+      });
     });
-  });
 
-  polylines.forEach((polyline) => {
-    const path = polyline.path!;
-    features.push({
-      type: "Feature",
-      geometry: {
-        type: "LineString",
-        coordinates: path,
-      },
-      properties: {
-        fineType: OverlayTypes.Polyline,
-      },
+  overlays
+    .filter((overlay) => overlay.type === OverlayTypes.Polyline)
+    .forEach((polyline) => {
+      const path = polyline.path!;
+      features.push({
+        type: "Feature",
+        geometry: {
+          type: "LineString",
+          coordinates: path,
+        },
+        properties: {
+          fineType: OverlayTypes.Polyline,
+        },
+      });
     });
-  });
 
-  circles.forEach((circle) => {
-    const center = circle.lngLat!;
-    const radius = circle.radius!;
+  overlays
+    .filter((overlay) => overlay.type === OverlayTypes.Circle)
+    .forEach((circle) => {
+      const center = circle.lngLat!;
+      const radius = circle.radius!;
 
-    const path = getCirclePath(center, radius);
+      const path = getCirclePath(center, radius);
 
-    features.push({
-      type: "Feature",
-      geometry: {
-        type: "Polygon",
-        coordinates: [path],
-      },
-      properties: {
-        fineType: OverlayTypes.Circle,
-        center,
-        radius,
-      },
+      features.push({
+        type: "Feature",
+        geometry: {
+          type: "Polygon",
+          coordinates: [path],
+        },
+        properties: {
+          fineType: OverlayTypes.Circle,
+          center,
+          radius,
+        },
+      });
     });
-  });
 
   return {
     type: "FeatureCollection",
diff --git a/src/utils/index.ts b/src/utils/index.ts
index 3f29989..fa7e156 100644
--- a/src/utils/index.ts
+++ b/src/utils/index.ts
@@ -3,6 +3,7 @@ import { OverlayTypes } from "@types";
 
 export * from "./hotkeys";
 export * from "./download";
+export * from "./upload";
 
 export function getUID() {
   return uid(12);
diff --git a/src/utils/upload.ts b/src/utils/upload.ts
new file mode 100644
index 0000000..ac10136
--- /dev/null
+++ b/src/utils/upload.ts
@@ -0,0 +1,23 @@
+const fileInput: HTMLInputElement = document.createElement("input");
+fileInput.type = "file";
+
+type UploadProps = {
+  accept: string;
+  onReady: (content: string) => void;
+};
+
+export function openUpload(props: UploadProps) {
+  fileInput.accept = props.accept;
+  fileInput.onchange = () => {
+    const { files } = fileInput;
+    if (files == null) return;
+    const reader = new FileReader();
+    reader.onload = function (e) {
+      const content = e.target?.result?.toString()!;
+      props.onReady(content);
+    };
+    reader.readAsText(files[0]);
+  };
+  fileInput.files = null;
+  fileInput.click();
+}