Permanent magnet synchronous motors have many problems such as high consumables and high cost. So synchronous reluctance motor with low cost and high efficiency was developed to replace permanent magnet synchronous motors under certain conditions, and to promote the use of highefficiency motors. The key technologies of the 2.2 kW, 4pole synchronous reluctance motor such as its structure, electromagnetic parameters, and control methods were studied. A theoretical basis was provided for the serialized design of the product. It has a certain reference for motor designers.