An error operation preventing method, apparatus and device are disclosed in the present invention, which are related to the field of mobile terminal. The error operation preventing method, apparatus and device, provided by embodiments of the present invention, monitor a first distance between a mobile terminal and the surrounding environment in real-time after the mobile terminal gets into an active state from a standby state, and determines whether the mobile terminal is put away or not by user (put in a backpack or pocket for example); when the first distance satisfies a preset distance condition, the mobile terminal can be regarded as in the state of put away by user, closes a touch screen of the mobile terminal and forbids the touch screen for preventing error operation to the mobile in the active state by user, so that the damage caused by error operation can be avoided.