本文研究在初始应力作用下导热导电粘弹体内平面波的传播.首先导出有初始应力存在时电磁场、位移场、温度场所满足的基本方程然后用它研究了流体静压力或张力及单轴压或张的初始应力条件下,磁—热—粘弹平面波的传播特性.讨论了弱耦合情况下,热效应磁场对波传播特性的影响.在无初始应力存在并略去热、磁耦合效应时,所得结果变成经典的粘弹波结果. In this paper, we study the propagation of plane waves in a thermally conductive and electrically conductive viscoelastic body under initial stress.Firstly, we derive the basic equations which satisfy the electromagnetic field, displacement field and temperature field in the presence of initial stress, and then use it to study the hydrostatic pressure or tension and uniaxial compression or tension The effect of the magnetic field with thermal effect on wave propagation under weak coupling is discussed.When there is no initial stress and the thermal and magnetic coupling effects are omitted, Into the classic viscoelastic results.