An open-type storage basket easy to assemble, comprising a side frame body arranged on a side and a bottom plate arranged on a bottom of the side frame body, the side frame body is formed by bending of at least one side edge frame, which have end parts connected through an X type clamping piece whose longitudinal cross section presents an X shape, the X type clamping piece includes a first V shaped metal strap arranged on one side, a second V shaped metal strap arranged on the other side; one end of the side edge frame is inserted into the first V shaped metal strap while the other end is inserted into the second V shaped metal strap; the first and second V shaped metal straps fix and connect together the side edge frame at the two ends through extrusion deformation to form side frame bodies of various shapes.