The motor vehicle inspection data monitoring svstem relies on advanced encrvption technology to construct amonitoring svstem for kev processes in motor vehicle inspection. Bv deploving dedicated encrvption eauipmentbetween the industrial control computer and the testing instruments, hardware encryption technology is used toencrypt and sign transmitted data, ensuring data traceability and verifiability, and eliminating the risk of interceptionand tampering during the transmission of original inspection data from the source.The svstem simultaneously builds a data management platform to conduct multi-dimensional verification ofinspectiondata and generate visual analysis reports, providing accurate and reliable data support for regulatory authorities. This effectively addresses the problem of data falsification at the source of inspection data, promotes the standardizedteyefepoteat slf he moteryefasleinane tiar indletrehelemeroyereruyletarr sollabora tge ftcieney onr tpettrresults, and builds a solid technical barrier for road traffic safety.