The utility model discloses a 3-DOF (degree of freedom) dynamic/static loading comprehensive test device for a linear motor, which comprises six non-contact loading mechanisms, a test platform, two linear guide rails, a loading support mechanism, two non-contact loading mechanism bearers and two contact loading mechanisms, wherein the two non-contact loading mechanism bearers are symmetrically mounted at both sides of the top end surface of a middle platform of the test platform in parallel along the Y axis direction; the two linear guide rails are symmetrically mounted on the top end surface of the middle platform between the two non-contact loading mechanism bearers in parallel; four non-contact loading mechanisms are mounted on the upper surface and the bottom surface at both ends of a cross beam in the loading support mechanism, and the other two non-contact loading mechanisms are mounted on two end surfaces perpendicular to the X axis of a base in the loading support mechanism; linear guide rail grooves at both sides of the base in the loading support mechanism are connected with the two linear guide rails in a contact manner; and both ends of the cross beam in the loading support mechanism and rectangular through holes on the two non-contact loading mechanism bearers form a clearance fit.