The invention relates to a business expansion controllable link time limit monitor and a processing method in an electric power marketing business application system. The business expansion controllable link time limit monitor comprises a monitor processing module, a data storage module, a clock module, a monitoring condition setting module, a display module and an early warning module, wherein the monitor processing module is connected with the data storage module, the clock module, the monitoring condition setting module, the display module and the early warning module. According to the invention, analysis is carried out on the whole business expansion process, and acquired relevant unit conditions are more visual and fairer. Time conditions and expiration warning of each business expansion process are absolutely clear, timeliness of data monitoring is achieved, and the inspection period is shortened. The business expansion controllable link time limit monitor is simple to operate, can monitor each controllable node of the business expansion process directly, and avoids stagnation in promotion of the work caused by personnel variations or business trips.