A stack type female connector includes a terminal assembly, a main body, and a shell, wherein the terminal assembly is inserted in the main body. A board end is at a bottom part of the terminal assembly for being inserted on a PCB. A plugging end is at an anterior part of the terminal assembly for connecting a SSD interface. The terminal assembly has an upper terminal assembly and a lower terminal assembly, wherein both of the upper terminal assembly and the lower terminal assembly have a 40-pin terminal member and a 28-pin terminal member. The 28-pin terminal member is formed of a 15-pin terminal member, a 7-pin terminal member, and a 6-pin terminal member inserted in the terminal pedestal. The stack type female connector achieves a simplified structure, a lower production cost, and a better heat dissipation performance through an optimized design of the structure.