diff --git a/src/background.ts b/src/background.ts
index 76bd250881..22c3e0156a 100644
--- a/src/background.ts
+++ b/src/background.ts
@@ -416,18 +416,40 @@ async function createWindow() {
     icon: path.join(__static, "icon.png"),
   });
 
+  let projectFilePath: string | undefined = "";
+  if (isMac) {
+    if (filePathOnMac) {
+      if (filePathOnMac.endsWith(".vvproj")) {
+        projectFilePath = encodeURI(filePathOnMac);
+      }
+      filePathOnMac = undefined;
+    }
+  } else {
+    if (process.argv.length >= 2) {
+      const filePath = process.argv[1];
+      if (
+        fs.existsSync(filePath) &&
+        fs.statSync(filePath).isFile() &&
+        filePath.endsWith(".vvproj")
+      ) {
+        projectFilePath = encodeURI(filePath);
+      }
+    }
+  }
+
+  const parameter =
+    "#/home?isMultiEngineOffMode=" +
+    appState.isMultiEngineOffMode +
+    "&projectFilePath=" +
+    projectFilePath;
+
   if (process.env.WEBPACK_DEV_SERVER_URL) {
     await win.loadURL(
-      (process.env.WEBPACK_DEV_SERVER_URL as string) +
-        "#/home?isMultiEngineOffMode=" +
-        appState.isMultiEngineOffMode
+      (process.env.WEBPACK_DEV_SERVER_URL as string) + parameter
     );
   } else {
     createProtocol("app");
-    win.loadURL(
-      "app://./index.html#/home?isMultiEngineOffMode=" +
-        appState.isMultiEngineOffMode
-    );
+    win.loadURL("app://./index.html" + parameter);
   }
   if (isDevelopment) win.webContents.openDevTools();
 
@@ -460,31 +482,6 @@ async function createWindow() {
     });
   });
 
-  win.webContents.once("did-finish-load", () => {
-    if (isMac) {
-      if (filePathOnMac) {
-        if (filePathOnMac.endsWith(".vvproj")) {
-          ipcMainSend(win, "LOAD_PROJECT_FILE", {
-            filePath: filePathOnMac,
-            confirm: false,
-          });
-        }
-        filePathOnMac = undefined;
-      }
-    } else {
-      if (process.argv.length >= 2) {
-        const filePath = process.argv[1];
-        if (
-          fs.existsSync(filePath) &&
-          fs.statSync(filePath).isFile() &&
-          filePath.endsWith(".vvproj")
-        ) {
-          ipcMainSend(win, "LOAD_PROJECT_FILE", { filePath, confirm: false });
-        }
-      }
-    }
-  });
-
   mainWindowState.manage(win);
 }
 
diff --git a/src/router/index.ts b/src/router/index.ts
index af2f37a724..fa7aefe54b 100644
--- a/src/router/index.ts
+++ b/src/router/index.ts
@@ -10,6 +10,7 @@ const routes: Array<RouteRecordRaw> = [
   {
     path: "/home",
     component: EditorHome,
+    props: (route) => ({ projectFilePath: route.query["projectFilePath"] }),
   },
 ];
 
diff --git a/src/store/project.ts b/src/store/project.ts
index e77a964eaf..f0cb795b1a 100755
--- a/src/store/project.ts
+++ b/src/store/project.ts
@@ -64,6 +64,9 @@ export const projectStore = createPartialStore<ProjectStoreTypes>({
   },
 
   LOAD_PROJECT_FILE: {
+    /**
+     * プロジェクトファイルを読み込む。読み込めたかの成否が返る。
+     */
     action: createUILockAction(
       async (
         context,
@@ -75,7 +78,7 @@ export const projectStore = createPartialStore<ProjectStoreTypes>({
             title: "プロジェクトファイルの選択",
           });
           if (ret == undefined || ret?.length == 0) {
-            return;
+            return false;
           }
           filePath = ret[0];
         }
@@ -275,7 +278,7 @@ export const projectStore = createPartialStore<ProjectStoreTypes>({
               cancelId: 1,
             });
             if (result == 1) {
-              return;
+              return false;
             }
           }
           await context.dispatch("REMOVE_ALL_AUDIO_ITEM");
@@ -293,6 +296,7 @@ export const projectStore = createPartialStore<ProjectStoreTypes>({
           context.commit("SET_PROJECT_FILEPATH", { filePath });
           context.commit("SET_SAVED_LAST_COMMAND_UNIX_MILLISEC", null);
           context.commit("CLEAR_COMMANDS");
+          return true;
         } catch (err) {
           window.electron.logError(err);
           const message = (() => {
@@ -307,6 +311,7 @@ export const projectStore = createPartialStore<ProjectStoreTypes>({
             title: "エラー",
             message,
           });
+          return false;
         }
       }
     ),
diff --git a/src/store/type.ts b/src/store/type.ts
index a925089fa3..1a1fecbd7e 100644
--- a/src/store/type.ts
+++ b/src/store/type.ts
@@ -941,7 +941,7 @@ export type ProjectStoreTypes = {
   };
 
   LOAD_PROJECT_FILE: {
-    action(payload: { filePath?: string; confirm?: boolean }): void;
+    action(payload: { filePath?: string; confirm?: boolean }): boolean;
   };
 
   SAVE_PROJECT_FILE: {
diff --git a/src/views/EditorHome.vue b/src/views/EditorHome.vue
index 8e4800b3e9..efc9d7d0cb 100644
--- a/src/views/EditorHome.vue
+++ b/src/views/EditorHome.vue
@@ -206,6 +206,10 @@ import cloneDeep from "clone-deep";
 export default defineComponent({
   name: "EditorHome",
 
+  props: {
+    projectFilePath: { type: String },
+  },
+
   components: {
     draggable,
     MenuBar,
@@ -227,7 +231,7 @@ export default defineComponent({
     ProgressDialog,
   },
 
-  setup() {
+  setup(props) {
     const store = useStore();
     const $q = useQuasar();
 
@@ -540,25 +544,32 @@ export default defineComponent({
       // 辞書を同期
       await store.dispatch("SYNC_ALL_USER_DICT");
 
-      // 最初のAudioCellを作成
-      const audioItem: AudioItem = await store.dispatch(
-        "GENERATE_AUDIO_ITEM",
-        {}
-      );
-      const newAudioKey = await store.dispatch("REGISTER_AUDIO_ITEM", {
-        audioItem,
-      });
-      focusCell({ audioKey: newAudioKey });
-
-      // 最初の話者を初期化
-      if (audioItem.engineId != undefined && audioItem.styleId != undefined) {
-        store.dispatch("SETUP_SPEAKER", {
-          audioKey: newAudioKey,
-          engineId: audioItem.engineId,
-          styleId: audioItem.styleId,
+      // プロジェクトファイルが指定されていればロード
+      let projectFileLoaded = false;
+      if (props.projectFilePath != undefined && props.projectFilePath !== "") {
+        projectFileLoaded = await store.dispatch("LOAD_PROJECT_FILE", {
+          filePath: props.projectFilePath,
         });
       }
 
+      if (!projectFileLoaded) {
+        // 最初のAudioCellを作成
+        const audioItem = await store.dispatch("GENERATE_AUDIO_ITEM", {});
+        const newAudioKey = await store.dispatch("REGISTER_AUDIO_ITEM", {
+          audioItem,
+        });
+        focusCell({ audioKey: newAudioKey });
+
+        // 最初の話者を初期化
+        if (audioItem.engineId != undefined && audioItem.styleId != undefined) {
+          store.dispatch("SETUP_SPEAKER", {
+            audioKey: newAudioKey,
+            engineId: audioItem.engineId,
+            styleId: audioItem.styleId,
+          });
+        }
+      }
+
       // ショートカットキーの設定
       document.addEventListener("keydown", disableDefaultUndoRedo);