A stroller includes a frame, a seat fixing base and a seat. The seat fixing base is disposed on the frame. The seat fixing base has an engaging structure. The seat includes an unlock button and a plurality of engaging members. The unlock button abuts against the engaging members. The engaging members engage with the engaging structure to restrain the seat on the seat fixing base. When the unlock button is pressed, the unlock button drives the engaging members to disengage from the engaging structure, such that the seat is able to be detached from the seat fixing base.