The invention discloses a judgement method and system for an energy-using intensity multi-point metering difference value exceeding a limit value. The method includes obtaining the energy-using intensity data of energy-using side metering equipment and the energy-using intensity data of corresponding energy supply side metering equipment on that day through a master station of an energy metering management system; confirming whether an intraday energy supply flow value of the energy-using side metering equipment is within a preset interval, and calculating the intraday energy-using intensity error value of a user if not; and comparing the intraday energy-using intensity error value of the user with a preset error threshold value, and determining whether intraday user side energy-using intensity exceeds a limit value. The method and system can analyze whether the metering equipment is in a normal working state and whether the user has the possibility of abnormally using energy accordingto the energy using intensity comparation results of two different pieces of metering equipment on a same energy conveying line.