According to the website of Henan Education Bureau, the "Small Four-door Policy" refers to a new policy issued by Henan Education Department, which allows some high school students to choose to take four cultural courses instead of the traditional unified examination of arts and sciences.

This policy aims to provide more diversified and personalized educational choices for senior high school students, which is conducive to expanding students' knowledge and horizons and improving their comprehensive quality. As of September 28, 2023, Henan Provincial Education Bureau has not announced the cancellation of the small four-door policy.