Disclosed is a cannula having multiple operating channels, relating to the technical field of medical instruments. The multi-channel operation cannula comprises a guide pipe. The guide pipe comprises a main conduit (1) and a sub conduit (2). The main conduit (1) and the sub conduit (2) are integrally configured. One end of the guide tube is an inlet end and another end thereof is an outlet end. A guide plate (3) is provided at the inlet end of the guide tube, and a first through hole (31) adapted for the guide tube is provided on the guide plate (3). The inlet end of the guide tube is inserted into the first through hole (31) so as to fixedly connect the guide tube to the guide plate (3). The length of the main conduit (1) is greater than the length of the sub conduit (2), and an outlet end of the sub conduit (2) is attached to an outer sidewall of the main conduit (1). A sight hole (4) for an endoscope is provided at a joint between the outlet end of the sub conduit (2) and the outer sidewall of the main conduit (1). During actual surgical procedures, when an instrument is operating from the sub conduit (2), an endoscope in the main conduit (1) can monitor an operation state of the instrument via the sight hole (4) for an endoscope. When the instrument is operating at the main conduit (1), an endoscope in the sub conduit (2) can also monitor the working state of the instrument. The working cannula has a simple structure and is easy to install, such that operation is more flexible and convenient.L'invention concerne une canule ayant de multiples canaux de fonctionnement, se rapportant au domaine technique des instruments médicaux. La canule de fonctionnement à canaux multiples comprend un tuyau de guidage. Le tuyau de guidage comprend un conduit principal (1) et un sous-conduit (2). Le conduit principal (1) et le sous-conduit (2) sont configurés d'un seul tenant. Une extrémité du tube de guidage est une extrémité d'entrée et une autre extrémité de celui-ci est une e
