The invention relates to the technical field of travel products, and discloses a negative pressure type leech remover and using method. The negative pressure type leech remover comprises a sealing pipe, a sliding sleeve, a piston, a pull rod, nine clamping grooves, a pull block, a communicating pipe, a suction cup, a beating mechanism, a fixing mechanism and a storage battery. The sliding sleeve is embedded in the middle of the top of the sealing pipe. The piston is slidably connected into the sealing pipe. The pull rod is installed at the top of the piston. The top of the pull rod penetratesthrough the sliding sleeve and extends to the top of the sealing pipe. The pull block is fixed to the top of the pull rod. The nine clamping grooves are formed in the right side of the pull rod at equal intervals. The communicating pipe fixedly communicates with the bottom of the sealing pipe. According to the negative pressure type leech remover and using method, negative pressure can be generated in the suction cup to adsorb the skin, on one hand, a leech can be separated from the skin more quickly, and on the other hand, after the leech is separated from the skin, blood in the skin adsorbedby the leech can be sucked out, the possibility of wound infection is prevented, and the device is convenient to use, sanitary, safe and convenient to carry.