A drawing force test device comprises a machine frame and a drawing assembly limited on the machine frame. The technical key point is as follows: the drawing assembly comprises a sliding sleeve I, a sliding sleeve II, a supporting sleeve, a base, a hydraulic cylinder and a clamping base; the sliding sleeve I, the sliding sleeve II and the supporting sleeve are limited on a guide column in a sliding way; the base is fixed on a cross plate on one of the sides; the hydraulic cylinder is arranged on the base and is limited by the supporting sleeve; the clamping base is limited on the sliding sleeve I; the output end of the hydraulic cylinder is hinged with the sliding sleeve II through a plug pin; a gas nipple connected with a gas source system is arranged on the sliding sleeve II on the opposite side of the supporting sleeve; a sealing sleeve for fixing a tested connecting piece is limited on the sliding sleeve II on the opposite side of the sliding sleeve I; a pipe fitting connected withthe gas source system is arranged between a tested sealing piece and the clamping base; a hollow seal head is arranged between the pipe fitting and the tested connecting piece; a positioning sleeve which is limited by a locking bolt is arranged on a guide rod; and the sliding sleeve I is limited by the positioning sleeve. The drawing force test device has the advantages of simple and compact structure, convenience and rapidness in use, low maintenance cost, various functions, high test efficiency, intuitive result, small detection error and the like.