Fresh-cut lentinus edodes were coated with mixed solutions containing different concentrations of sodium alginate and chitosan, and then packaged with argon MAP. The effects of sodium alginate and chitosan concentration on the qualities of fresh-cut lentinus edodes were studied by measuring the respiration rate, weight loss rate, hardness, whiteness, PPO, and sensory evaluation. Results indicated that the 0. 5% chitosan +1. 5% sodium alginate can inhibit effectively the respiration rate and weight loss rate of fresh-cut lentinus edodes; it can also maintain the highest hardness value; and in the later storage period, the whiteness value is significantly higher than other treatment groups, so it is more acceptable for consumer.