In this study, a class of Schrödinger–Poisson system with N-Laplacian operator and critical exponential growth is taken into consideration \(\begin{aligned} {\left\{ \begin{array}{ll} -\Delta _N u + V(x)|u|^{N-2}u + \lambda \phi |u|^{p-2}u = \mu g(u), & x \in \mathbb {R}^N,\\ -\Delta \phi = |u|^p, & x \in \mathbb {R}^N, \end{array}\right. } \end{aligned}\) where \(\Delta _N u = \operatorname {div}(|\nabla u|^{N-2}\nabla u)\) is the N-Laplacian operator with \(N \ge 3\) , \(\lambda \) and \(\mu \) are positive parameters, and \(p > N\) . Here, V(x) and g(u) are smooth functions. With a primary technique of constrained minimization, we determine the existence, energy estimate, and convergence property of nodal (that is, sign-changing) solutions.
