The invention provides a centering mounting and correcting method for a high precision lens and belongs to precision optical machine installation and correction technology. First, a decentration measurement instrument is used for measuring the lens axis error of perpendicularity of a lens frame mechanical reference relative to a lens; an error direction is marked and a tool fixed on a rotary tableis used for grinding the lens frame mounting end face. According to the invention, the lens axis error of perpendicularity is corrected through grinding the inner hole end face of the lens frame, sothat an aim of realizing coaxial of the lens axes is realized. The method provided by the invention is high in precision, good in effect and does not affect lens form.