Abstract: Calculating the lateral earth pressure acting on a retaining wall was an essential step in the design of many geotechnical engineering structures． A simplified model of distribution for the lateral earth pressure on a retaining wall with drum-type mode was proposed through analysis． The proposed model was verified through comparisons with Terzaghi-Peck and Tschebotarioff model by two engineering examples． The comparsive result showed that the recommended model for lateral earth pressure more closer to the measured．