The invention relates to the technical field of automotive testing fixtures, and particularly to an automotive hand brake durability testing device which has advantages of convenient operation and high precision reliability. The automotive hand brake durability testing device comprises a platform, a workpiece mounting rack, a first pulley rack and a second pulley rack. A main shaft which is driven by a servo motor for rotating is horizontally mounted on the workpiece mounting rack. The end of the main shaft is provided with a mounting disk for mounting a hand brake body. According to the automotive hand brake durability testing device, the main shaft is driven to rotate through the servo motor, thereby finishing lifting action of a stay wire and stretching and retraction of a resetting spring. An appropriate load is loaded on the free end of the stay wire through a counterweight. The stay wire and the reset spring can be tested. Furthermore the heights of three supporting racks in the whole test are adjusted. Therefore the angle of the stay wire can be adjusted for adapting with different hand brake types, thereby assisting a hand brake durability test, ensuring high test precision and improving test efficiency. Convenient operation, effective simulation for force bearing process of an actual hand brake, and relatively low error are realized.