The utility model discloses an intelligent terminal based on low presenting a theatrical performance as last item on a programme is distinguished line loss on -line monitoring and is fallen damage assay, including treater, collector, smart electric meter, handheld terminal and marketing measurement system, the treater sends gui biangui through power line carrier to the collector and instructs mutually, and the collector passes through the RS485 bus and links to each other with smart electric meter and gather its data, the treater is given with data transmission to the collector, and treater analytical calculation received data are still sent the result to marketing measurement system with the result through wireless communication module through infrared communication or SMS short message sending to handheld terminal, treater, this intelligent terminal, the collection of data is complete, timely, and then can be timely calculate accurate line loss result.