[Objective] An inspection and management system for check dams was designed with the help of modern smart phones and informatization technology in order to further implement “three responsible persons” management system, and to improve safety management for check dams in the Loess Plateau. [Methods] A WeChat application named “Inspection and Management System for Safe Operation of Check Dam” was designed for smart phone used to assist managers at all levels to inspect and manage check dams. [Results] An information database for check dam projects and a personnel management database for managers were established that allowed managers to carry out inspections and clocking in and out as required. The system can identify safety hazards for check dams, remind managers to describe the problems identified, and upload pictures for reminding higher authorities to propose timely solutions to eliminate safety hazards and to reduce risks. Additionally, an application module was constructed for the smart water application platform. [Conclusion] The designed smart phone application could increase the information level for safety management of check dam projects in the Loess Plateau, shorten the response time for reporting safety hazards to responsible departments so that problems can be solved, and assist management departments at all levels to keep abreast of project risk points in their jurisdiction at any time.