Abstract: The internal properties of waste body on typical simple waste landfill were researched in Beijing area.The variable regularity of internal temperature with filled depth of waste body was measured in site.The variable regularities of waste component,rate of water content and organic content with filled depth of waste body were found indoors.Resultsshow that the inner temperature in the waste will decrease with increasing of dumping depth for superficial landfill,yet the inner temperature in the waste will increase with increasing of dumping depth for deep landfill until reaching peak value,then the adverse results can be obtained.The quantity of organic matter will decrease with increasing of dumping depth,and the water content values measured have indicated to increase with increasing mass of organic matter.