Lizardfish, Saurida undosquamis is one of the most popular fishes inhabiting the Red Sea and migrated then widely distributed in the Mediterranean Sea. Monte Carlo method-based Surplus Production Model CMSY++ was used to predict the biological reference points (PRBs) for S. unodsquamis using catch and catch per unit of effort time series data 1980-2021. The Biological Reference Points for S. unodsquamis are MSY= 1.4*1000ton, B/BMSY= 0.629, Exploitation F/FMSY= 1.29, Carrying Capacity k= 18.2*1000ton, The intrinsic growth rate of the fish population r=0.304 y-1. Such information constructs the base to set up a reliable strategy to rebuild the stock and avoid the management side effects on the community of the fishermen.