The invention provides a new energy plant station power generation schedule making method based on equal-proportion power generation limitation. When a power system cannot consume all new energy due to peak shaving constraint, main transformer constraint, trend constraint and the like, new energy optimal dispatching modeling is conducted with the minimum value of the quadratic sum of the proportion between the power generation limiting value and the installed capacity of each new energy plant station as the target, a new energy plant station power generation schedule is made, and therefore the operation safety of the power system is guaranteed. By the adoption of the new energy plant station power generation schedule making method based on equal-proportion power generation limitation, it can be guaranteed that the sum of power generation limiting values in a system is minimum, the proportions between the power generation limiting values and the installed capacities of the new energy plant station limited by identical conditions can be totally identical, and the purpose that power generation limitation is equal is achieved.