Abstract: The invention provides a vaginal dilator including a spiral body and a control rod, wherein the spiral body includes a first surface, a second surface, a buckling edge, a fixing seat and a plurality of positioning seats. The buckling edge is adjacent to the first surface and the second surface. The fixing seat is arranged on a side of the first surface which is adjacent to the buckling edge. The plurality of positioning seats are separately arranged on an other side of the first surface opposite to the side provided with the fixing seat. The control rod includes a locking end locked on the fixing seat.