Abstract: The general nutritional components(protein,total sugar,fat and ash)and 13 kinds of metal contents in Haliotis discus hannai meat were determined. The samples included 2 age groups and 3 different strains of the overwintering abalones in southern and cultured abalones in northern. The general nutritional components and 8 kinds of beneficial metal element(K,Ca,Na,Mg,Cu,Zn,Mn,Se)were analyzed by the method of principal component analysis. According to the principal component analysis with dimension reduction,the comprehensive analysis model was established and ordered. The results indicated that the nutritional components existed significant differences(P<0.05)among the ten different strains abalone samples. The contents of protein,total sugar,fat and ash were 60.80%~72.45%,5.09%~23.88%,1.52%~3.74% and 6.27%~7.63%,respectively. The content of 5 kinds harmful metal element(Pb,Cr,Cd Hg and As)were low and met the national limited standard. The content of beneficial metal elements were abundant and the content of trace elements Cu,Zn,Mn and Se were 1.57~2.63,2.39~3.59,0.26~0.77 and 0.031~0.069 mg/100 g,respectively. The 3 main components were extracted and their accumulative variance contribution rate reached 80.742%. The top three in the overall scores were the first age northern original abalone of Ailian Bay,the first age northern wild abalone of Changdao and the first age northern production abalone. The results showed that the northern abalones had significant advantages with the overwintering abalones and the Ailian Bay original abalone of the three strains was in a dominant position and had high nutritional value.