The invention relates to a composite strain path forming test device, the device comprises a split type spherical punch head which is composed of a first punch head, a second punch head, a third punch head and a fourth punch head, the integral body is in a semispherical shape, a lifting punch head is composed of the first punch head and the second punch head, the third punch head and the fourth punch head are respectively positioned at the two sides of the lifting punch head, one end of a punch push rod is connected with the lifting punch head, the other end of the punch push rod stretches out of a die holder, a separation mode is provided in a cavity of a female mold, the separation mode is matched with the split type spherical punch head. The present invention has the advantages that 1,the structure is simple and the usage is convenient. 2, the forming limitation measurement of bulging deformation and drawing deformation of a metal sheet under the composite strain path can be finished, and the invention creates condition for detection of the forming limitation of the metal sheet under the complex strain path which is in favor of researches of metal sheet material forming performance.