Abstract: In this study a three-dimensional mathematical model of electromagnetic stirring in billet mold was developed by adopting ANSYS finite element analysis software.The effects of different process parameters on magnetic flux density and electromagnetic force in the billet mold were discussed.It is found out that the temperature of mold copper tube has obvious influence on magnetic flux density.On the axis direction of the stirrer center,the distribution of magnetic flux density is higher on both sides and lower in the middle.Nevertheless,the distribution of magnetic flux density and electromagnetic force is weaker in the middle and stronger on both sides,which is on the radial direction of the cross section of the stirrer center.As the frequency keeps constant,the magnetic flux density and the electromagnetic force increase with the increase of the current.When the current keeps constant,the magnetic flux density decreases with the increase of the frequency,while the electromagnetic force increases with the increase of the frequency.