Abstract: Using fresh eggs as experimental material and used shell-lac as clingfilm material. During the storage temperature (20±2) ℃, relative humidity 50%±10%, studying the effect of the rate of weight loss of eggs, Haugh unit, yolk index, pH of egg white, pH of egg yellow by different shell-lac coating. Experiment results showed:After twenty one days' storage, eggs of shell-lac coating were better than eggs in the control group.And the best one was coating of 3.00% shell-lac, the rate of weight loss of eggs was 3.04%, Haugh unit was 69.03, yolk index was 0.31, pH of egg white was 9.45, pH of egg yellow was 7.07.