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In this paper,the adaptive synchronization of a stochastic fractional-order complex Lorenz system is analyzed.Firstly,the Laguerre polynomial approximation method is applied to investigate the fractional-order system with a random parameter which obeys an exponential distribution.Based on this method,the stochastic system is reduced into the equivalent deterministic one.Besides,based on the stability theory of fractional-order systems,the adaptive synchronization for the deterministic system with unknown parameters is realized by designing appropriate synchronization controllers and estimation laws for uncertain parameters.Numerical simulations are used to demonstrate the e(R)ectiveness and feasibility of the proposed scheme.