The invention provides a zero position focusing method and system for integrated movement as well as electronic equipment. The method comprises the steps as follows: S1, controlling the movement position of a focusing motor according to the level signal state sent by a focusing motor position detector; S2, acquiring voltage values output by a triode in real time according to movement of the focusing motor, if yes, entering S3, otherwise, continuously acquiring voltage values and taking the average value to serve as the low-level voltage value of the integrated movement; and S3, continuously acquiring the voltage value of the output end of the triode to obtain three continuous voltage values V3, V4 and V5, continuously acquiring voltage values when the V3, V4 and V5 do not satisfy the relation that V4 is larger than V3 and smaller than V5, and taking the average value to serve as the high-level voltage value of the integrated movement; and S4, calculating the median of the low-level voltage value and the high-level voltage value, wherein the current step number, corresponding to the median, of movement of the focusing motor is the lens focusing zero position of the integrated movement. By use of the method in the embodiment, the focusing precision of the focusing motor is effectively improved.