Information management method and device of measurement equipment

The invention provides an information management method and device of measurement equipment, which are applied to a network system comprising a plurality of block chains, and the network system comprises data sender node equipment and data manager node equipment. The data sender node device is a node device of a first block chain, and the data manager node device is a node device of a second block chain; the first block chain stores a target evidence storage transaction sent by the data sender node equipment, and the target evidence storage transaction comprises equipment state information of the measurement equipment; the method comprises the following steps: receiving a cross-chain management request of data management party node equipment for the equipment state information of the measurement equipment stored in the first block chain; verifying whether the data management party has the management authority of the equipment state information of the measurement equipment or not; if yes, the target evidence s