The invention discloses a customer information recording method for a mobile electric power marketing system, which can record accurately, completely and conveniently and is time-saving and labor-saving. An electricity inspector collects customer information on the check scene, and a tablet personal computer and the mounted work system are adopted. The work system is composed of a root directory, a first-level subdirectory, a second-level subdirectory, a third-level subdirectory and a fourth-level subdirectory; the root directory content comprises basic customer information and various electricity data; the root directory content contains a user electricity information query page; the first-level subdirectory is divided into three parts, and each part respectively correspond to one type of different business information; the second-level subdirectory is created under the first-level subdirectory; an adding button for creating the third-level subdirectory is arranged in the second-level subdirectory; the third-level subdirectory is created through the adding button; the third-level subdirectory is a folder for inputting specific business information of the user; the name of the third-level subdirectory is automatically generated, and also comprises created time information. The customer information recording method is applicable to recording and managing the user information by a power supply system.