Abstract: It will bring the convenience to people’s life if people can control the computer by their mobile phones. This paper discusses how to use the mobile phone to control a computer by allowing the computer to respond the messages sent by a phone with which the computer is establishing a connection. Based on this， this paper also discusses how to show the computer’s screen on the mobile phone in real-time， and makes an analysis on the way that the image shows and the key-pressed response mode.

Key words: bluetooth, mobile phone, computer, control