Spherical solid rocket engine testing device

The invention provides a spherical solid rocket engine testing device which comprises a heavy frame, a force measuring assembly, a front connecting cylinder part, a rear connecting cylinder part, a high-precision testing frame and a supporting vehicle. The heavy frame is used for supporting the force measuring assembly; the spherical solid rocket engine is installed and fixed through the front connecting cylinder part and the rear connecting cylinder part and then placed on the high-precision test rack, and the supporting vehicle is used for supporting the high-precision test rack. After installation, the force measuring point of the force measuring assembly directly faces the center of the spherical solid rocket engine, and the thrust axis of the spherical solid rocket engine is in the horizontal direction. The spherical single-skirt engine test device solves the problem of spherical single-skirt engine test, and provides convenience for supporting and fixing of an engine by utilizing the cylindrical shape o