Electric connector and manufacturing method of electric connector

The invention discloses an electric connector which is used for electrically connecting an inserting card with a plurality of electric contacts to a circuit board. The electric connector comprises a main body part and a plurality of connecting terminals, wherein the main body part comprises a shell provided with an inserting end and an output end, a support part which is integrally formed inside the shell and provided with a support surface at the output end of the shell, and a plurality of through holes which are formed between the shell and the support part; the plurality of connecting terminals are inserted into the output end from the inserting end through the through holes; each connecting terminal is generally vertically bent and forms a bent part at the output end; the bent part is provided with a convex shoulder part; a plurality of accommodating grooves are formed on a support surface; one part of the bent parts of the connecting terminals are completely accommodated inside the accommodating grooves