Abstract: An assembly method of a voice coil motor for assembling component parts of a voice coil motor includes the following steps: (1) providing identifiable glue, and the identifiable glue is made by mixing colorable substance or phosphor into transparent glue; (2) coating the identifiable glue on connecting positions of the component parts; (3) curing the identifiable glue, and identifying the identifiable glue simultaneously to check dispensing and curing effect of the component parts. The assembly method can cure and check the voice coil motor simultaneously, thereby it can improve the production efficiency, reduce the manpower, and promote the development of the automated production line. An assembly device is also disclosed.