In this paper,we use an information geometric algorithm to solve the distribution control problem.The new designed algorithm is called principal whitened gradient-projection algorithm.In the principal natural gradient step,we use principal whitened gradient algorithm to obtain an optimal trajectory of the weight vector on the B-spline manifold from the viewpoint of information geometry.In the projection step,we project the selected points on B onto M.The coordinates of the projections on M give the trajectory of the control input u.