The invention discloses a runway type background magnet for testing a superconducting strip, and belongs to the technical field of superconducting material detection. According to the device, an intermediate magnetic field generation area frame (5), left and right runway type coils (3 and 4) and left and right fixing plates (1 and 2) are assembled into a whole through first to fourth threaded rodsand nuts, and a strip clamp and a strip assembly body (12) are arranged in a strip magnetic field channel (15) and are sealed; runway type positioning grooves are formed in the middle magnetic fieldgeneration area frame and the left and right side fixing plates; and current is introduced to generate a uniform high-intensity magnetic field in the intermediate magnetic field generation region. Rectangular tooth grooves are formed in the top plate (7) in a circumferential array mode, and a top strip clamp fixing disc (8) and a bottom strip clamp fixing disc (11) are connected with the strip clamp and the strip assembly body. The included angle between a high-temperature superconducting strip (14) and the background magnetic field is changed by changing the cooperation of the angle fixing left teeth (21-1) and the angle fixing right teeth (21-2) and the rectangular tooth grooves, so that the anisotropy of the strip can be conveniently measured.