In this study, the steady-state response of a moving crack in the functional graded piezoelectric materials (FGPM) is investigated. The material parameters are assumed to vary exponentially and Yoffe's model is adopted. The governing equations for FGPM are solved by use of Fourier consine transform. The formulation for the boundary conditions is derived as a system of dual integral equations, which in turn are reduced to Fredholm integral equation of the second kind. The obtained solutions can be reduced to existing solutions in the literature. Numerical results for stress intensity factors are evaluated and discussed in detail.