To provide a drip-proof member for connector and a cable structure which are applicable in a narrow space and can reduce the load in mounting work and can be produced at a low cost.

The drip-proof member for connector comprises: a cylindrical part in a cylindrical shape which is attached to a cable with its end connected to a connector, so as to cover a part of the cable; and a cup part which is connected to the cylindrical part and prevents a drop attached to the cable from reaching the connector. The cup part has an upper surface facing the rear end of the cable, and a lower surface facing the front end of the cable. The cylindrical part pierces the cup part from the upper surface to the lower surface. The upper surface is concave.