Under the guidance of higher education reform and related policies of ideological and political construction, ideological and political construction of "Ordinary Differential Equations" should be carried out in combination with the subject characteristics of discipline of mathematics. Taking the course as an example, the ideological and political education elements contained in each chapter are deeply explored, and the "Differential Equations of Separable Variables" is taken as the ideological and political case for teaching. Ideological and political elements and teaching content are organically integrated to achieve the parallel advancement of professional courses and ideological and political education. The ideological and political effects are evaluated from knowledge and ability, value identification and behavior externalization, and good results have been achieved, thus achieving the goal of moral education.