Abstract: Life is based on protein.People pay more attention to protein intake in food.Great change to protein detection happened after the incident of melamine, and it attracted more attentions from relevant departments to the job of protein detection.Various ways for rapid detection of protein in food were reviewed and summarized in this paper and corresponding principle, detection time was analyzed compared with Kjeldahl determination, and its application outlook was illustrated as well.Given that, it could provide several references for further research on detection of protein.