In this article we are interested in the following fractional p-Laplacian equation in ℝn (-Δ)psu + V (x)|u|p-2u = f(x, u) in ℝn, where p ≥ 2, 0 < s < 1, n ≥ 2 and f is p-superlinear. By using mountain pass theorem with Cerami condition we prove the existence of nontrivial solution. Furthermore, we show that this solution is radially simmetry.