Medical tee joint capable of puncturing

The utility model discloses a medical tee joint capable of puncturing, which comprises a tee joint body and a control valve, the tee joint body is provided with a main through cavity and three tee joint ports, and each tee joint port is communicated with the main through cavity; the control valve comprises a valve body and an operating part, the operating part is connected to the valve body, the valve body is rotatably installed in the main through cavity, a collecting cavity is formed in the valve body, three through holes communicated with the collecting cavity are formed in the valve body, and a part of or all the through holes are communicated with or separated from the corresponding three-way ports in the rotating process of the valve body; an extending hole communicated with the collecting cavity is formed in the operating part; a plug used for insertion of an injector is installed in the extending hole, or the collecting cavity and the extending hole are connected to form a channel, and a plug used for