In consequence of the economic growth and urbanization of population in Taiwan in recent years, the volume of waste increases from day to day with all the more complicated properties. The manpower cost to clear away the waste has been soaring up even since the weekly 2-days-off system was enforced under Labor Law. How to promote effectively the management efficiency of waste disposal is now an essential topic in waste disposal planning. In the presence of ever-increasing workloads and limited self-financing sources, the county/city governments might make it an issue of privatization in days to come. This project’s targets at the policy-making units of public-operated waste disposal practice in Taichung City. The main purpose is to analysis and to compare the efficiency of waste disposal in Taichung City. And result in estimating at which units or factors should be improved and which policy is available for government to practice? The main purpose is to examine the effect of privatization on management efficiency of waste disposal in Taichung City. Using questionnaire survey from common people, disposal workers and policy-making units estimate the efficiency factor between public disposal district by using DEA(Data Envelopment Analysis) and AHP（Analytic Hierarchy Process）. And provide the suitable policies for policy makers by cost-efficiency analysis. It conclude that (1) The priority of privatization between clear unit is west-district > east-district > west-tun district > north-district > north-tun district > south-tun district. (2) The reduction of personnel burden could be used for street cleaning by enhance the workloads re-assignment. (3) According to the result of policy-making and common people survey reveals that most people satisfy the disposal service by government clearing units. (4) It reveals that privatization can save 33% cost by calculating the labor, management and vehicle cost.