In this article concerns the semiclassical Choquard equation −ε²∆u+ V (x)u = ε−2 ( 1/|·| ∗ u²)u for x ∈ R³ and small ε. We establish the existence of a sequence of localized nodal solutions concentrating near a given local minimum point of the potential function V, by means of the perturbation method and the method of invariant sets of descending flow.