diff --git a/libs/core.js b/libs/core.js
index 65e0fd7a..2bb28115 100644
--- a/libs/core.js
+++ b/libs/core.js
@@ -1158,6 +1158,18 @@ core.prototype.keyUp = function(keyCode) {
                 });
             }
             break;
+        case 33: case 34: // PAGEUP/PAGEDOWN
+            if (core.status.heroStop) {
+                if (core.flags.enableViewMaps) {
+                    core.drawText("\t[系统提示]即将进入浏览地图模式。\n\n点击地图上半部分，或按[↑]键可查看前一张地图\n点击地图下半部分，或按[↓]键可查看后一张地图\n点击地图中间，或按[ESC]键可离开浏览地图模式\n此模式下可以打开怪物手册以查看某层楼的怪物属性", function () {
+                        core.ui.drawMaps(core.floorIds.indexOf(core.status.floorId));
+                    })
+                }
+                else {
+                    core.drawTip("本塔不允许浏览地图！");
+                }
+            }
+            break;
         case 37: // UP
             break;
         case 38: // DOWN
diff --git a/libs/events.js b/libs/events.js
index 457cedea..1163b45e 100644
--- a/libs/events.js
+++ b/libs/events.js
@@ -1167,8 +1167,8 @@ events.prototype.clickViewMaps = function (x,y) {
 
 ////// 查看地图界面时，按下某个键的操作 //////
 events.prototype.keyDownViewMaps = function (keycode) {
-    if (keycode==37 || keycode==38) core.ui.drawMaps(core.status.event.data+1);
-    else if (keycode==39 || keycode==40) core.ui.drawMaps(core.status.event.data-1);
+    if (keycode==37 || keycode==38 || keycode==33) core.ui.drawMaps(core.status.event.data+1);
+    else if (keycode==39 || keycode==40 || keycode==34) core.ui.drawMaps(core.status.event.data-1);
     return;
 }