A waterproof connector includes a first terminal module, a second terminal module, a covering module and an outer shell. The first terminal module includes a first insulating body and a number of first terminals. The second terminal module includes a second insulating body and a number of second terminals. The first insulating body is provided with a first hollow groove. The second insulating body is provided with a second hollow groove. The outer shell is provided with a top surface. The top surface is provided with a first glue pouring port communicating with the second hollow groove. The waterproof connector is provided with a first sealant poured into the first hollow groove, and a second sealant poured into the second hollow groove. The second sealant and the first sealant are two pieces. As a result, the waterproof performance of the waterproof connector is improved.