A socket connector, including: a side wall, a group of elastic pins and a group of pins, in which the side wall encloses a containing cavity, a first opening and a second opening are arranged at two ends of the containing cavity respectively, the elastic pins are arranged in the containing cavity; the elastic pins are fixed at the inner side of the side wall, the pins are fixed at the outer side of the side wall, and the group of elastic pins are electrically connected to the group of pins one to one; the first opening and the second opening each are capable of holding an electronic component matched with the socket connector. a camera module and a terminal device which adopt the foregoing socket connector are provided. The socket connector has two openings for mounting, so two electronic components may be inserted at the same time.