Abstract: The electric field of charges on spherical surface with cosine distribution ( σ=σ0cos θ) is solved by the integral method. By composition of the electric fields of the charge elements on the two surface area elements enclosed by a solid angle at the field point at first，the resultant fields can be easily obtained. The results are the same with the existing ones.

Key words: charges on spherical surface, cosine distribution, solid angle, integral method