Abstract: A finite-element analysis model of heat transfer and solidification in electromagnetic continuous casting crystallizer area was established by a two-way coupled method. The contact state of solidified shell and mould was described to simulate the thermal and mechanical states of soft-contact mould. The effect of high-frequency alternating electromagnetic field on the distributions of gap and temperature in the billet was studied. The results showed that the thermal-mechanical behaviors in the electromagnetic soft-contact mould can be described accurately by the two-way coupled method. With the high frequency electromagnetic field, the solidification starting point moves downwards, the initial shell thickness gets thinner, and the gap size reduces at the initial solidification zone, but the shell thickness and the gap size increase at the outlet of mould.