Engine testing device

The invention provides an engine testing device, and the device comprises a rack; the rack comprises a foundation frame and a protective cover arranged on the foundation frame, and a testing space isdefined by the foundation frame and the protective cover; the foundation frame is of a box structure, and a first space, a second space and a third space are arranged in the foundation frame. A fuel supply device is arranged in the first space, a cooling water supply device is arranged in the second space, and a cylinder head cooling assembly is arranged in the third space; a partition plate is further arranged in the protective cover and divides the test space into a mounting space located on the right side and a loading space located on the left side; an engine tool frame, an engine tool moving device and an air inlet filtering assembly are arranged in the mounting space, and a loading device and an exhaust device are arranged in the loading space. The device has the advantages of beingreasonable in structure, s