The present invention relates to an animal syringe having an improved structure comprising: a fixed body part (100) comprising a main housing (110), an operating rod (120), and a restoring spring (130), wherein the main housing (110) has a hollow part formed by the coupling of a housing piece (110a) on one side and a housing piece (110b) on the other side, the operating rod (120) is disposed in the hollow part of the main housing (110), and the restoring spring (130) is placed within the main housing (110) and provides a restoring force to the operating rod (120)； a pressurization part (200) comprising a pressurizing member (210) and a grip (220), wherein the pressurizing member (210) is slidably inserted in the rear of the main housing (110) and is integrally coupled with the rear end of the operating rod (120), and the grip (220) is integrally formed with the pressurizing member (210)； a liquid medicine injection part (300) comprising a liquid medicine cylinder (320), a piston (330), and a needle part (310), wherein the liquid medicine cylinder (320) is coupled to the front of the main housing (110) and has a liquid medicine chamber (321) formed therein, the piston (330) is connected directly to the operating rod (120) or to an auxiliary rod (340) coupled to the operating rod (120) and integrally moves back and forth with the operating rod (120), and the needle part (310) is coupled to the front of the liquid medicine cylinder (320) and injects, into the body of an animal, liquid medicine charged into the liquid medicine chamber (321)； and a disinfectant spraying part (400) which is coupled to the fixed body part (100) and which ejects a disinfectant or a color liquid onto the external part of the skin of an animal.La présente invention concerne une seringue pour animal ayant une structure améliorée comprenant : une partie corps fixe (100) comprenant un boîtier principal (110), une tige d'actionnement (120), et un ressort de rappel (130), le boîtier principal (110
