Vehicle keyless door lock system with connecting line shared by switching circuit and resonance circuit

The invention relates to a vehicle keyless door lock system with a connecting line shared by a switching circuit and a resonance circuit, which comprises a central processing unit (1) and a door handle antenna and switch integration module (2), wherein the central processing unit (1) is connected with the door handle antenna and switch integration module (2) through a first wiring harness (3) and a second wiring harness (4). The vehicle keyless door lock system is characterized in that the door handle antenna and switch integration module (2) comprises the resonance circuit (5), a first resistor (6), a first electronic switch (7), a second resistor (8) and a button switch (9). The vehicle keyless door lock system with the connecting line shared by the switching circuit and the resonance circuit designed by the invention has the benefit that as the electronic switch is controlled by utilizing the button switch, not only is the purpose of reducing the wiring harness for directly connecting the central processing unit and a communication module realized, but also the control reliability is increased, and the interference among the circuits is reduced.