In the actual production process of high-voltage wire harnesses, crimping is rated as a key feature, and it is one of the important production links in the wire harness production process. In the process of developing the crimping mold, the crimping engineer must carefully analyze the matching of the connector structure and the wire. During this period, the work content of the crimping engineer is particularly important. It is necessary to analyze the connector assembly instructions and find out the structural state of the connector. Put forward the development list and requirements to the mold developer to ensure that there is no problem in the use of the mold after development. Through the above analysis, each crimping method has its own characteristics. As long as careful analysis is required, a suitable crimping die can be developed to meet the crimping requirements and ensure product quality.