The utility model belongs to the electric component field relates to current transformer, especially relates to a ready -package sword type low pressure current transformer. Including base and the current transformer body of setting on the base, the current transformer body including fix the terminal of base both sides and with terminal electric connection's current coil group, current coil group is including setting up at punching conductor between the terminal and the current coil of suit on the punching conductor, electric connection between terminal and the punching conductor. Compared with the prior art, the utility model discloses an advantage lies in with positive effect, the utility model provides a ready -package sword type low pressure current transformer utilizes the punching conductor for his original punching wire, and make punching conductor and current coil form a whole, and then solved the problem that traditional dismouting is troublesome, measuring accuracy is low, anti -electricity -theft ability is weak, simultaneously, the utility model discloses simple structure, convenient, the low cost of processing are fit for using widely on a large scale.