This paper investigates the existence and concentration behavior of nodal solutions for the planar Schrödinger-Poisson system with subcritical exponential growth \(\begin{aligned} \left\{ \begin{array}{l} -\Delta u+V(\varepsilon x)u+\mu \phi u= f(u)\ \ \text{ in }\ {\mathbb {R}}^2,\\ \Delta \phi =u^2\ \ \text{ in }\ {\mathbb {R}}^2, \end{array}\right. \qquad \qquad \qquad ({\mathcal {S}}) \end{aligned}\) where \(\varepsilon, \mu >0\) are parameters, V and f are continuous functions. Under suitable assumptions, the existence of nodal solutions is established, using variational methods. Furthermore, we prove that the nodal solutions of ( \({\mathcal {S}}\) ) concentrate around the minimum point of V and exhibit exponential decay at infinity.
