The professional skills of good after-sales service personnel for power distribution cabinets can be considered from the following perspectives: Communication and training abilities and customer communication skills. After-sales service personnel need to communicate well with customers. They should be able to explain the causes of power distribution cabinet failures, repair options and maintenance recommendations to customers in plain language. During communication, pay attention to tone and attitude, remain patient and polite, and answer customer questions in a timely manner. For example, when explaining a complex electrical problem to a customer, be able to use analogies or simple examples to make it easy for the customer to understand. Customer Training Ability tests whether they can provide basic training to customers. For example, after the installation and commissioning of the distribution cabinet is completed, they should be able to provide operational training to the customer's operators, including how to correctly open and close the distribution cabinet, how to read instrument data, how to identify common fault alarm signals, etc. Through training, customers can better use and maintain power distribution cabinets and reduce failures caused by improper operation.