A hermetic electrical adaptor including a first insulative body, a second insulative body, a plurality of contacts, a first glue body and a second glue body. The contact has a main body and first and second contacting sections located at two opposite ends of the main body. The first insulative body has a first base and a first tongue, and the second insulative body has a second base and a second tongue. The second base forms a receiving cavity to receive the first base. The first contacting section is disposed upon the first tongue, and the second contacting section is disposed upon the second tongue. The first insulative body is integrally formed with the contacts as a contact module before assembled with the second insulative body. The first base forms in a back side a receiving space to receive the first glue body.