The present invention relates to a novel electromagnetic valve with a pilot valve structure, which belongs to a system control element in a refrigeration-circulating system. The prior art has the defect that the structural problem causes the injury of the surface quality of a small valve seat, which reduces the qualified rate of products. The electromagnetic valve comprises a main valve, a pilot valve and an electromagnetic coil; wherein, the pilot valve is provided with a bushing; a small valve seat is welded in the cavity of the bushing; the end of the bushing, which is close to the electromagnetic coil, is hermetically welded with an end enclosure, and the other end of the bushing is blocked by an end cover. Since the end of the bushing, which is close to the small valve seat, is blocked by the end cover, both ends of the bushing are open, particularly, the end of the bushing, which is close to the small valve seat, is open, thereby, after being welded, the small valve seat can be precisely processed in order to avoid the injury of the surface quality of the small valve seat caused by welding, ensure the precision degree of the surface of the small valve seat and increase the qualified rate of products. Meanwhile, since the structure is simple, the qualified rate of mass production can be ensured.