This paper simplify the formula of meridian are length. With the formula, general Gauss pro-jection program is imtroduced for 1980 Geodetic coordinate system on any reference ellipsoid.

• 通过简化子午线弧长公式，给出适用于各种椭球的通用高斯投影实用公式，并简单介绍依此编制的通用高斯投影计算程序。