The invention discloses a portable movable wrench which comprises a working part, a fixed wrench lip, a movable wrench lip, a clamping part, a spring and a foldable handle. The working part is arranged on the foldable handle. The fixed wrench lip is arranged on the working part. Two sliding grooves are symmetrically formed in the working part. The movable wrench lip is installed in the sliding grooves. The clamping part is arranged below the movable wrench lip. A moving groove is formed in the working part. A handle sliding groove is formed in the moving groove. The moving groove is matched with the clamping part. The spring is fixed to the bottom of the moving groove and connected with the clamping part. According to the portable movable wrench, the effort-saving effect can be guaranteed, and meanwhile the portable effect is achieved. A worm gear and a worm are replaced by the clamping part, the effect that the size of a wrench opening of the wrench is adjustable can be guaranteed, and meanwhile the problem that the worm gear directly makes contact with hands, and consequently the worm gear is rusted is solved.