Provided is a handheld APP. The invention specifically relates to the technical field of power utilization APP application. The structure of the APP is as follows: the APP comprises a background support system module (1), a data support module (2), a maintenance module (3), a network monitoring management module (4), a two-dimensional code module (5), an APP terminal module (6) and the like. The method has the advantages that the power supply service capability is improved, the data utilization efficiency is effectively improved, the practicability and the popularization efficiency of an electronic channel are improved, the service cost of a manual counter is reduced, the high-quality service level of a company is improved, and the image of the enterprise society is improved. The APP alsoeffectively solves the problems that online payment, power failure information query, power utilization business consultation, untimely power supply service in an original traditional mode are not solved in time, a three-level penetration management mode of city, county and county is popularized and established, the whole power supply service resource system is covered, and the power supply service quality of clients is comprehensively improved.