Stroke controllable driving system

The utility model relates to a stroke controllable driving system, which solves the problems that the existing similar driving system has the disadvantages of inconvenient installation, high cost, etc. The stroke controllable driving system comprises a motor, adopts a chain and/or a gear to realize the mechanical transmission of a transmission mechanism and a corresponding control circuit, wherein a rotary shaft or a rotary shaft sleeve barrel of the motor is uniformly provided with one or a plurality of grooves or tangent planes; the inner side of the control circuit comprises a metal proximity switch, and the mounting position of the metal proximity switch is opposite to the positions of the grooves or the tangent planes; a small gap is arranged between the induction end face of the metal proximity switch and the circular surface of the rotary shaft or the rotary shaft sleeve barrel; the metal proximity switch is connected with a main control circuit through a signal wire, so after a working power supply of the motor is switched on, the main control circuit turns off the working power supply of the motor whether the status change times of the metal proximity switch are equal to a preset value or not. Thereby, the utility model can realize accurate stroke control.