This paper is mainly concerned with the asymptotic dynamics of stochastic diffusive coral reef ecosystems with L e ̵́ vy noise. Firstly, we prove the well-posedness and energy estimates of solution. Secondly, under some suitable conditions, we prove the existence and uniqueness of weak pullback mean random attractors and invariant measures. Finally, a large deviation principle result for solutions of stochastic diffusive coral reef ecosystems with L e ̵́ vy noise is obtained by a variational formula for positive functionals of a Poisson random measure and the method of weak convergence.