A robotic belt grinding method for accurate control of the blade leading edge profile was proposed in this paper. The stress distribution in the contact area between the flexible abrasive tool and the leading edge of the blade was obtained by combining the semi-Hertzian contact theory and finite element simulation， and the material removal function was solved based on the Preston equation. The global material removal matrix was established by traversing the grinding depth of the control point. The resident time was set up to solve the nonlinear equations. Tikhonov regularization with a damping factor was used to eliminate the influence of a large sparse-ill-conditioned matrix on the fluctuation of solving accuracy， and then the desired dwell time was converted to the feed speed of the corresponding cutter point so as to generate the robot machining code. The grinding experiment results show that the robotic belt grinding method based on resident time control can achieve accurate machining of the leading edge profile of the blade within a given tolerance range， and the profile error can be controlled within 0.02 mm.