The invention discloses a multipurpose test loading device. The multipurpose test loading device includes six groups of hydraulic cylinders, wherein a piston end of each hydraulic cylinder is in a seat-pin-connection with double ear plates on the outer side wall of a connection device; the connection device includes two double hole ear plates with the same shape and specification; the upper part and the bottom of the inner wall of two double hole ear plates are connected through I-shaped wing plates; trifoliate wing plates are arranged at the positions, being opposite to the I-shaped wing plates, at the upper part and the bottom of the each double hole ear plate; the I-shaped wing plates, the trifoliate wing plates and connected webs form welded I-shaped steel; 6 section steel tips are formed on two ends and the outer side walls of the double hole ear plates; each section steel tip is provided with a double ear plate base; and two sides of the top end of each double hole ear plate are both connected with a bottom pin of one connection plate. For the multipurpose test loading device, the hydraulic cylinders are connected with equipment to be tested through the connection plates and the connection device, and the test of the maximum hook load of derrick or drilling machine equipment is realized through telescoping of the hydraulic cylinders. The multipurpose test loading device has the advantages of simple structure, convenient operation, safety and reliability.