The new college entrance examination policy cancels the division of arts and sciences, and the exam becomes 3+3 or 3+ 1+2. The diversity of free combination and the combination of grading system make the subjects selected for the new college entrance examination become the focus of attention of candidates and parents. In the 3+ 1+2 model, there is only a little more history major, but compared with only physics, physics and history, his proportion is still very small. Therefore, students who choose history must check whether their target major can be admitted when choosing history subjects.