The invention provides an interaction method and device for a mobile terminal. The interaction method of the mobile terminal comprises steps as follows: a gravity shaking instruction is detected, and whether the gravity shaking instruction is an instantaneous gravity shaking instruction is judged; if the gravity shaking instruction is the instantaneous gravity shaking instruction, a pre-configured interaction instruction corresponding to the instantaneous gravity shaking instruction is acquired; corresponding interaction operation is performed according to the interaction instruction. By means of the method, the operation convenience can be improved.