The invention provides a multifunctional electronic tag system based on NB-Iot (5G). The multifunctional electronic tag system comprises a front-end tag unit, a communication unit, a system health monitoring unit, a monitoring management platform and a mobile terminal unit, the front-end label unit is used for monitoring the position and posture of an attached target, sending the collected operation data to the monitoring management platform, and adjusting the working parameters according to a feedback instruction of the monitoring management platform. The system health monitoring unit is usedfor carrying out periodic inspection on each module and uploading fault information, and comprises a fault detection module and a record uploading module; the monitoring management platform is used for receiving the operation data and performing visual management on remote target assets; the mobile terminal unit is used for carrying out online monitoring on the target position, the posture changetrend, the health degree and the construction data, automatic configuration of target remote monitoring and system operation can be achieved, the application scene is wider and more flexible, and themanagement efficiency is high.