Brown rice zinc content and it’s variation in 264 plant lines in BRILs（Towada/Lijing2/ Towada BC4F5）were determined by ICPAES technique.Correlations between brown rice znic content with sixteen elements(K,P,S,Mg,Ca,Mo,Ni,Fe,Cr,Na,Al,Cu,Sn,B,Mn and Sr)content,nine agronomic traits (seed setting rate,full grains,blighted grains,panicle length,effective tillering,anther length,anther width,uppermost internode length,and reciprocal secondary leaf length ),MDA content and three enzyme activity (POD,SOD and CAT)were analysed.The aim of that were to open out association between zinc in brown rice with other mineral element,yield and cold tolerane et al traits of rice.The results showed that brown rice zinc content distribution in BRILs were normal and some lines had more zinc content than parents.Brown rice zinc content significant correlated with eight elements（K,S,P,Mg,Ca,Fe,B,Mn）content at 001 level and significantly partial correlated with five elements（S，Mg，Ni，Cr，Al）content at 005 levelBrown rice zinc content were deemed primary to correlate negatively with yield and cold tolerane of rice.Correlation between brown rice zinc content with menzyme activity were not significant.