Engine power detection system for new energy automobile power system

The invention belongs to the technical field of engine detection, and discloses an engine power detection system for a new energy automobile power system, the engine power detection system comprises a protective shell, the left end of the front surface of the protective shell is movably sleeved with a limiting sleeve, and the back of the limiting sleeve is fixedly connected with a first gear. Through cooperation of the second gear, the movable assembly and other structures, the output shaft of the engine drives the first gear to rotate, the first gear drives the second gear to rotate so as to drive the movable assembly to rotate, and the movable assembly extrudes a connecting strip in the moving process; the connecting assembly at the right end of the back of the connecting strip intermittently generates pressure on the pressure sensor, the pressure sensor records the time interval of pressure generation, under the work of the processing module, the rotating speed is calculated through the distance of one cir