Positive pressure needleless connector

The utility model discloses a positive pressure needleless connector. The positive pressure needleless connector comprises a main positive pressure needleless connecting pipe and a branch normal pressure needleless connecting pipe, wherein the branch pipe is arranged on the side wall of a shell and is provided with a hollow cavity, a branch pipe rubber plug is arranged in the hollow cavity of the branch pipe, the top surface of the upper end of the branch pipe rubber plug is a plane, a sealing structure is formed by the upper end of the branch pipe rubber plug and the upper end of the branch pipe, at least one notch is formed in the side face of the upper end of the branch pipe rubber plug, a flow pass space is formed between the lower end of the branch pipe rubber plug and the wall of the branch pipe, and a gap is reserved between the bottom of the lower end of the branch pipe rubber plug and the wall of the lower end of the branch pipe. Due to the fact that the branch needleless connecting pipe is arranged on the side wall of the shell, operation such as injection during infusion is facilitated. The branch pipe rubber plug enables needleless insertion of an external insertion part to be achieved conveniently and quickly. Meanwhile, due to the fact that the sealing structure is formed by the upper end of the rubber plug and the upper end of the branch pipe, outside particles or scraps are prevented from entering the connector.