The charging post is unattended for a long time, and the operation of charging all depends on the user's self-service. The design should consider the simplicity of user operation. The simplicity of user operation reflects the intelligence of the charging pile. The following summarizes the requirements of electric vehicle users for the intelligent design of charging pile system: the charging pile should have the ability to monitor the charging status in real time, store and make logical judgment according to the collected information: the human-computer interaction interface of the charging pile system should be simple and friendly to reduce the difficulty of the users.