Shield machine hob is the core component for excavating rock and soil in tunnel construction. The failure inspection of shield machine tool is an important bottleneck that restricts the safety and efficiency of tunnel construction. Through the study of hob failure mechanisms and reasonable selection of detection physical quantity, a multi-parameter integrated sensor device based on hob speed, hob temperature and hob wear are designed. Wireless acquisition and communication technology is adopted to realize the transmission of measurement signals and real-time on-line detection of hob condition. The sensor device has been verified by industrialized application, and it can meet the requirements of on-line detection of hob under the harsh working environment of shield tunneling in terms of technical design and hob condition evaluation. This research has important reference value for the intelligent diagnosis and evaluation of tool failure.