1. Increase in education investment: With the increasing attention of the state to education, the investment in education in Henan Province is also increasing year by year, which provides more resources and guarantees for the development of high school education in Henan Province.

2. Expansion of the scale of high school education: With the acceleration of urbanization and the increase of population in Henan Province, the scale of high school education is also expanding, which provides the soil for the increase of the number of college entrance examination students.

3. Reform of the college entrance examination system: The reform of the college entrance examination system is also one of the reasons for the increase in the number of college entrance examinations. For example, the continuous reform of college entrance examination subjects and examination methods, and the implementation of various enrollment systems for special students have led to an increase in the number of college entrance examinations.