Electric vehicle brake pad and system thereof

The utility model provides an electric vehicle brake pad and a system thereof, and relates to the technical field of electric brake pads, the top of one side of a main shell is movably provided with a first brake pad, the bottom of one side of the main shell is movably provided with a second brake pad, and the bottom of the first brake pad is fixedly provided with a TOF laser ranging sensor. The TOF laser distance measuring sensor is located on the inner side of the first brake pad, the transmitting tube of the TOF laser distance measuring sensor transmits measuring light waves, and when the detecting direction of the measuring light waves encounters an obstacle, the measuring light waves are reflected back and received by the receiving tube. And the distance from one end of the first brake pad to the other end of the first brake pad can be calculated according to the time from emitting to receiving of the laser and the propagation speed of the laser, so that the wear degree of the brake pad can be detected a