方法一：

To install APK applications on your Android phone do the following:

Here’s a quick tutorial for new Desire owners on how to install Android applications (.apk files) onto your HTC Desire:

1. Download Astro File Manager from the Market
2. Connect your phone to computer in disk drive mode (connect to USB cable, select Disk Drive from the options that appear on the phone, press Done)
3. Copy the APK file to the SD card (anywhere you like)
4. Disconnect phone from computer (remembering to Safely Eject first)
5. Open Astro and browse to the file
6. Select the file and choose the Open App Manager option
7. Press the Install button
8. If you get a message saying: “Install Blocked. For security, your phone is set to block installation of applications not sourced in Android Market”, go to Settings > Applications > check the box which saysUnknown Sources

中文說明：

1. 從 android Market 下載   Astro File Manager 軟體
2. 把你的手機連電腦
3. 把 apk 程式拷貝到 SD card
4. 在手機上打開 Astro 軟體，並選取  browse to the file
5. 選取SD card 上的apk 程式
6. 點選 Install 在Astro軟體
7. 如果出現: “Install Blocked. For security, your phone is set to block installation of applications not sourced in Android Market”,  請到  Settings > Applications >Unknown Sources 打鉤 再執行 步驟4-6

PS： 有些手機只限可以從android market 下安裝，如過在步驟七時候，出現

³For Security, your phone is set to block installation of applications not
sourced in Android Market²  的話，意思就是安裝應用程式只能從 android market 上安裝，無法透過此方法安裝

方法二：

使用cmd的cd命令定位到Android 模拟器目录Tools中，执行adb install android123.apk命令，这时模拟器将会自动执行安装。