The new Austrian tunneling method (NATM) is widely used in tunnel construction. Aimed at the deficiency of the secondary support time in NATM, the defect of classical ground pressure theory was analyzed, and a circular target optimization theory of tunnel support was proposed based on support control curve, engineering geology condition, and monitoring data. The support structure stress and surrounding rock deformation relation with different stress release rate were obtained by finite element method calculation. The target limited displacement was determined by considering support stress and surrounding rock deformation, and revised by the calculation of later excavation effect. The finial proper condition for secondary supporting was determined by considering the in-situ monitoring data. At last, this method was verified by engineering application.