The oil content,protein content and total protein-oil content of 183 soybean varieties was analyzed,which was through validation over the past 10 years in Heilongjiang province,Jilin province,Liaoning province and Inner Mongolia.The results showed that the oil content was 20.61%,and protein content 41.54%,total protein-oil content 62.16% on average of these soybean varieties.Oil content of varieties released in Heilongjiang province and Jilin province was higher than in Inner Mongolia and Liaoning province,but little difference among provinces was observed.The proportion of high-oil varieties was more in Heilongjiang province and Jilin province.The protein content of soybean varieties released in Inner Mongolia and Liaoning province was higher than in Jilin province and Heilongjiang province,and the proportion of high-protein varieties was larger in Inner Mongolia and Liaoning province.Total protein-oil content showed also the same trend.