The invention relates to a power battery package system high voltage interlocking connector detection system. The detection system comprises a plurality of high voltage interlocking connectors, each of the high voltage interlocking connectors comprises a plug and a socket, which are connected together. A signal generator, a signal detector, and a processor are provided. Two ends of the contacts ofeach socket are parallel connected with a detection resistor, and the signal generator is connected with all of the detection resistors, and the signal detector is connected with two ends of each detection resistors. Compared with the prior art, the invention is advantageous in that the connection state of all of the high voltage interlocking connectors can be detected, and the current state of each concrete high voltage interlocking connector can be discriminated concretely, and in addition, the battery package system can be detected timely during the use or after the assembly of the connectors, and therefore high efficiency and accuracy are realized at the same time, and the use safety of the battery package high voltage circuit can be guaranteed.