The invention discloses a positioning column of a connector and a connector, relates to the technical field of connectors, and aims to solve the problem in the prior art that when a positioning columnis broken off from an inlet of a positioning hole, the part of the positioning column which is inserted in the positioning hole is difficult to take out from the positioning hole through a clamping tool. The positioning column of the connector includes a body used for insertion connection with a positioning hole in a matched manner, the body is internally provided with a cavity in a position corresponding to the inlet of the positioning hole, the cavity is internally provided with a clamping part, the clamping part is connected with an inner surface of the cavity, and when the body is brokenoff from the inlet of the positioning hole, the clamping part is left on the part of the body used for insertion in the positioning hole. The positioning column of the connector is used for insertionconnection with the positioning hole in a matched manner.