A stroller includes a stroller frame, a frame locking mechanism, and a seat. The stroller frame can be folded or unfolded. The frame locking mechanism locks the stroller frame to be unfolded. The seat is pivotally connected to the stroller frame and is connected to the frame locking mechanism. Therein, when the seat pivots, the seat drives the frame locking mechanism to unlock the stroller frame so as to fold the stroller frame. The stroller is structurally simple and is convenient to be folded.