Text message input method and device

The embodiment of the invention discloses a text message input method and device. According to the method, firstly, a first editing frame of a handheld device is called; then, display contents of the first editing frame are updated according to editing operation of an operator on the first editing frame; finally, whether first display contents at the current moment of the first editing frame and second display contents at the last moment are the same, if not, the first display contents are sent to a set top box, and the set top box can update display contents of a second editing frame. Thus, the display contents of the second editing frame of the set top box and the display contents of the first editing frame of the handheld device can be synchronous, and then input and delete operation of a single word or a specific symbol by users utilizing built-in input methods of the handheld device can be facilitated, in addition, text editing operation like cutting and copying large block of text messages can be achieved, and the text input efficiency and speed of the set top box can be improved.