A modular endoscope structure, comprising: an endoscope handle (1), an endoscope sheath (2), and an endoscope tube (3) provided inside the endoscope sheath (2). A first connecting sleeve (4) is fixedly connected to a rear end of the endoscope sheath (2). The first connecting sleeve (4) is internally provided with a first connecting pin shaft (13). A second connecting sleeve (5) that is sleeved on the first connecting sleeve (4) is fixedly connected to a front end of the endoscope handle (1). The second connecting sleeve (5) is internally provided with a second connecting pin shaft (14) matching the first connecting pin shaft (13). The endoscope is divided into a front module and a rear module so that the front and the rear modules are detachable. The front module is disposable. The rear handle is an operational portion that can be used multiple times. A connecting mechanism therebetween uses rotation or horizontal insertion of a connecting hook to connect the front and the rear modules. A wire (8) is used to control a bending angle of the endoscope tube (3). The endoscope has a simple structure and is easy to use. Only the front sheath thereof is disposable, effectively reducing the cost of consumable endoscope components as well as reducing nosocomial cross-infection.La présente invention concerne une structure d'endoscope modulaire, comprenant : une poignée (1) d'endoscope, une gaine (2) d'endoscope, et un tube (3) d'endoscope disposé à l'intérieur de la gaine (2) d'endoscope. Un premier manchon de liaison (4) est relié à demeure à une extrémité arrière de la gaine (2) d'endoscope. Le premier manchon de liaison (4) est pourvu en son sein d'un premier arbre de tige de liaison (13). Un second manchon de liaison (5) qui est emmanché sur le premier manchon de liaison (4) est relié à demeure à une extrémité avant de la poignée (1) d'endoscope. Le second manchon de liaison (5) est pourvu en son sein d'un second arbre de tige de liaison (14) correspondant au premier arbr
