A waterproof connector is provided with a moving support plate without requiring an increase in size of the connector. A moving plate (40) has a shape whereby a side wall (42) protrudes upwards from circumference edges of a base plate (41) having maintaining holes (44) adapted to receive tabs (24) of male terminal fittings. This moving plate (40) can be inserted in a movable manner within a hood (22) of male housing (20). A first sealing ring (51), for sealing the space between the moving plate (40) and an outer circumference face of the female housing (10), is formed on an attachment base of an inner circumference face of an anterior end (42A) of the side wall (42). A second sealing ring (52), for sealing the space between the moving plate (40) and in inner circumference face of the posterior end (42B) of the side wall (42). These sealing rings (51) and (52) are formed in a unified manner, by means of two-component molding, on the moving plate (40).