The modern society has an increasing demand for smart protective apparel against impact from contact sports, traffic, and ballistic force etc. However, so far there has been no measuring and sensing technology available for flexible textile materials with large deformation. Based on the previous achievements by the applicants, the present project is aimed to develop a built-in and in-situ multi-parameter evaluation system to be integrated with protective apparel. By real-time obtaining and analysis of spatial and temporal distributions of strain and pressure inside protective apparel during high-speed impact loading, the system can provide information and intelligence to help train sportsmen and reduce possible injuries to human body, to timely detect injury on human body and wirelessly transmit the situation to related surgeons, and to evaluate performances of protective textiles and apparel. On one hand, the project targets developing a platform technology of smart protective apparel with a reasonable cost and ensured performance quality. On the other hand, the technology will also fill a gap in the field of high-speed impact protection as well as corresponding product market.