Dynamical propagation characteristics of spatial solitons after passing a parity-time (PT) symmetric potential with a longitudinal barrier is investigated by numerical simulation．The simulation results show that a spatial soliton transversally deflects after transmitting through the barrier. The deflection angle is related to the gain/loss coefficient, the modulation depth and the longitudinal dimension of the PT symmetric potential barrier. The gain/loss coefficient shows an important influence on the dynamical propagation characteristics of spatial solitons. Besides, after passing a PT symmetric potential barrier, the spatial soliton obtains an energy gain whose value is closely related to the deflection angle. By adjusting the barrier parameters, the deflection angle can be controlled. This makes spatial solitons have a great application potential in many fields such as optical switch and optical communications.