The present invention provided a connector socket which can always gain suitable contact pressure between a plug member and a contact piece. The connector socket is equipped with a connector housing 2 having a plug inserting part 5 to insert a plug member 4 into, and a contact piece 11 housed in the connector housing 2 and having contact spring pieces 13, 13 in elastic contact with the plug member 4. Each contact spring piece part 13 is equipped with a corrective projection 15 at a non-contact side edge part, made in contact with a surface 6a of the connector housing it faces. |