We investigate the cosmological evolution of a two-field model of dark energy where one is a dilaton field with canonical kinetic energy and the other is a phantom field with a negative kinetic energy term .
A phase-plane analysis shows that the phantom-dominated scaling solution is the stable late-time attractor of this type of models .
We find that during the evolution of the universe , the equation of state w changes from w > -1 to w < -1 , which is consistent with the recent observations .