Optimal estimates on asymptotic behaviors of weak solutions both at the origin and at the infinity are obtained to the following quasilinear elliptic equations −Δpu − μ |x| p |u| p−2 u + m|u| p−2 u = f (u), x∈ R N , where 1 < p < N, 0 ≤ μ < ((N − p)/p) p , m > 0 and f is a continuous function.