Abstract: With their deeper involvement in the development of economy and society， local governments have to explore new methods to fight against corruption. An important aspect in this endeavor is to establish assessment indexes apt to each local situation in terms of constructing a clean government based on the Central Government's document “The Implementation Plan for Establishing and Upgrading the System of Sanction and Prevention of Corruption that Equally Emphasizes Education， Rules， and Supervision.” This paper analyzes and compares the domestic and international indexes of anticorruption and proclean administration， describes a new theoretical framework， and then proposes an assessment index that can appropriately evaluate the actual administration of the local governments in China. This paper contends that the “involvementsoutcomes” assessment method is the principle one to measure a local government's efforts and effectiveness to combat corruption. According to the current reality in China， the major method should be introspective when measuring the perception and judgment of the distribution of the valueadded authority in the process of rule implementation that exists in the government's actions. This index system pays attention to the measurability of the indexes and the attainability of the data. Having such an index system may improve the effectiveness and accuracy of developing clean governments， and this index is an indispensable component of the alert mechanism in the anticorruption combat.

Key words: anticorruption, assessment index system, clean government construction