A linear vibration motor is disclosed. The linear vibration motor includes a housing, a vibrator placed in the housing and an elastic component providing the vibrator with restoring force of vibration. The linear vibration motor also comprises a guide device including an internal guide device, an external guide device, a ball location device arranged between the internal guide device and the external guide device and fixed relative to the housing, and multiple balls positioned on the ball location device. The balls are propped against the external guide device and the internal guide device respectively. Moreover, the rollers will roll in presence of drive effect of the internal guide device and roll at the permanent position. The vibrator is propped in the housing by using the balls.