The invention discloses a waterproof connector and a manufacturing process. A low-melting point polymer material is used to form a waterproof ring through Molding. The melting point of the waterproofring is lower than the melting point of the body. A finished product is returned to a high-temperature furnace and is welded. The waterproof ring is melted and swells. The waterproof material has thecharacteristic of good adhesion with an opposite material. Adjacent materials can be seamlessly bonded to realize waterproofing of a connector IPX7. The waterproof connector molding method has the advantages of low cost, high efficiency and stable production.