Abstract: In this study,p H,protein,sodium chloride,water,total sugar,crude fat and fatty acid from brine of braised chicken during repeated braising were analyzed,which was to provide a reference for formation mechanism of basic nutritional components from old brine.With repeated braising process cycles,water content,sodium chloride content and p H value decreased( p < 0.05),and protein content,total sugar content,crude fat content and UFA /SFA increased( p < 0.05) from braising brine. The value of p H,protein content,sodium chloride content,water content,total sugar conten,crude fat content,UFA / SFA from old brine was 6.20,5 g /100 g,3.61 g /100 g,90.05 g /100 g,0.39 g /100 g,0.06 g /100 g and 1.34,respectively. In general,basic nutritional components of repeated braising brine remained stable( p > 0.05) after 12 repeated braising process cycles. Brine of 12 repeated braising process cycles almost achived the quality of old brine and becomed a complicated,multicomponent and stable system.