To reform their college entrance examination systems，Shanghai，Zhejiang and four other provinces and municipalities in China have implemented the “3+3” model，where the first “3” stands for the three required subjects：Chinese，mathematics and English language，while the second “3” stands for the three subjects students can choose from physics，chemistry，biology，politics，history，geography and/or technology. Now eight other places including Guangdong province have announced adoption of a “3+1+2” model，where “3” stands for the same three required subjects，“1” for physics and history，and “2” for chemistry，biology，ideological politics and geography. The “3+1+2” model is the result of adapting local conditions to the college entrance examination reform. However，there are still disputes over whether the liberal arts and science subjects are still implemented，and the difficulty of matching student selection with university admissions plans. Based on an in-depth analysis of the advantages and disadvantages of the latter model，this article emphasizes that the ongoing reform in college entrance examination should focus on admission instead of subject，which has great limitations. It is suggested to strengthen the reform of comprehensive quality evaluation and encourage all regions to explore the reform of separation of admissions and examinations.