The utility model provides a vehicle control subassembly, including the controller with be used for the installing support of static controller, wherein the installing support is provided with a plurality of mounting holes, the surface of controller is provided with a plurality of sliders with a plurality of mounting hole one -to -ones, every mounting hole all includes: cooperation portion cooperatees with the slider to allow the slider embedding wherein, and the slide, the border of following cooperation portion extends the predetermined distance along keeping away from cooperation portion direction, and the slider constructs can be along the slide joint in the mounting hole to make the controller be connected in the installing support through the cooperation detachably of a plurality ofsliders with a plurality of mounting holes. The utility model discloses only need set up specific joint structure respectively on controller and installing support, just can pass through the joint structure with the controller and fix on the installing support when the installation to improve work efficiency, reduction in production cost has avoided the time cost, cost of labor and the zero extracomponents cost that utilize in the current mode bolt fastening to consume.