The invention provides an open type rigid suspension bogie motor hanger. A main body structure comprises two side vertical plates, a middle vertical plate and two motor mounting pressing strips; grooves for the motor mounting pressing strips are reserved in the two side vertical plates; the motor mounting pressing strips are clamped into the grooves; the motor mounting pressing strips are welded together with the side vertical plates at the two ends through half-surrounded welding seams; U-shaped rib plates are arranged between the middle vertical plate and the two side vertical plates; the external sides of the side vertical plates are connected and fixed with triangular rib plates; and cover plates are arranged at the upper part and the lower part of the main body structure. According to the open type rigid suspension bogie motor hanger, as the welding seams only bear tension-compression stress due to butt joints and each welding seam within the open structure can be completely welded through adoption of the open structure, good welding processing property of the motor hanger is ensured and the integral structural strength of the motor hanger can be also well ensured. The open type rigid suspension bogie motor hanger has the advantages of simple structure, good welding processing property and so on; and as an upper cover plate of the traditional motor hanger is eliminated, the distances between the vertical plates are increased by 30% in the same design space so that the bearing capacity and stability of the motor hanger are greatly enhanced.