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In this paper, we are concerned with the following fractional $N/s$-LaplacianChoquard equation  \begin{align*}  \begin{cases}  (-\Delta)^s_{N/s}u=\lambda |u|^{\frac{N}{s}-2}u +(I_\mu*F(u))f(u),\ \\mbox{in}\ \mathbb{R}^N,  \displaystyle\int_{\mathbb{R}^N}|u|^{N/s} \mathrm{d}x=a^{N/s},  \end{cases}  \end{align*} where $s\in(0,1)$, $1<\frac{N}{s}\in \mathbb{N}^+$, $a>0$ is aprescribed constant, $\lambda\in \mathbb{R}$, $I_\mu(x)=\frac{1}{|x|^{\mu}}$with $\mu\in(0,N)$, $F$ is the primitive function of $f$, and $f$ is acontinuous function with exponential critical growth of Trudinger-Moser type.Under some suitable assumptions on $f$, we prove that the above problem admitsa ground state solution for any given $a>0$, by using the constraintvariational method and minimax technique.

Normalized solutions for a fractional $N/s$-Laplacian Choquard equation with exponential critical nonlinearities