The utility model discloses a pipe thread fixation clamp relates to medical instrument manufacturing technical field, include through round pin axle articulated clamp I and clamp II that clamp II is equipped with by two otic placodes and is located the articulated portion that two arc breachs between the otic placode constitute in one end, is equipped with by two blocks of buckles and is located the buckling part that two breachs between the buckle constitute in the other end, clamp II is equipped with the II of pipe clamp portion that one side surface distribution has a plurality of positioning arc connected in stars between buckling part and articulated portion, clamp I is equipped with in one end and is used for the cartridge in articulated portion arc breach and clamp II articulated pin joint portion, is equipped with in the other end to be used for the cartridge in the joint portion of buckling part breach with clamp II lock joint, is equipped with the I of pipe clamp portion that one side surface distribution has a plurality of positioning arc connected in stars between joint portion and pin joint portion. Compare prior art, the utility model discloses can make that multiple pipe is neat, orderly, safety, labour saving and time saving, the operability is good.