This study aimed at developing some of the mathematical modelling skills necessary for the student teachers in mathematics education College. Modeling involves making genuine choices, modeling problems have many possible justifiable answers, modeling problems matter to the end-user who needs to understand something or make a decision. Modeling presents problem solving as a creative, iterative process. and it is inherently a team sport. To achieve this aim, the following main question was answered: How can we develop the mathematical modelling skills for the student teacher. The sample of the study consisted of 35 students in the fourth-year in the department of mathematics education. The researcher used a mathematical modelling scale which consisted of: evaluating test for students' mathematical modelling skills. Measuring student's attitude towards suggested program of mathematical modelling which consisted of four units Using mathematical modelling to solving some problems. Modelling the data. Mathematical modelling and operation research. Mathematical modelling using "Mathematica software Program." After Applying the designed mathematical modelling, comparing the pretest and the post tests, the outcomes showed that there was lack of the student teachers' competence in the ' mathematical modelling in the pre-test. In the post-application the test showed that there was improvement in the student teachers' mathematical modelling skills. The statistical analysis verified the effectiveness of the suggested program in developing student teachers' mathematical modelling skills in the department of mathematics and teaching mathematical modeling in a regular basis in the department is not applicable ,since many of the professors do not prefer a mathematical modeling so there should be more studies to be conducted in the field of mathematical modelling, focusing on higher-order thinking skills and a continuous developing of student preparation Programs in the Faculty of Education.