  The EGB is an outcome of quadratic curvature corrections to the
Einstein-Hilbert gravity action in the form of a Gauss-Bonnet (GB) term in $ D
> 4$ dimensions, and EGB gravity is topologically invariant in $4D$. Several
ways have been proposed for regularizing the $ D \to 4 $ limit of EGB for
non-trivial gravitational dynamics in $ 4D $. Motivated by the importance of
AdS/CFT, we obtain an exact static spherically symmetric nonsingular black hole
in $4D$ EGB gravity coupled to the nonlinear electrodynamics (NED) in an AdS
spacetime. We interpret the negative cosmological constant $\Lambda$ as the
positive pressure, via $ P=-\Lambda/8\pi$, of the system's thermodynamic
properties of the nonsingular black hole with an AdS background. We find that
for $P<P_c$, the black holes with $C_P>0$ are stable to thermal fluctuations
and unstable otherwise. We also analyzed the Gibbs free energy to find that the
small globally unstable black holes undergo a phase transition to the large
globally stable black holes. Further, we study the $P-V$ criticality of the
system and then calculate the critical exponents to find that our system
behaves like Van der Walls fluid.
