This report comprehensively introduces the application of progressive wage model in public sanitation industry in Singapore and analyzes the specific operation of such model in terms of income distribution by elaborating the background of the model，the implementation institutions and procedures，and the implementation of related supporting policies. These information has actual referential significance for improving the Chinese sanitation workers’ wage distribution system，such as how to raise the wages for the low-income group（s），how to establish the supporting system，how to develop a reasonable wage determination and growth mechanism for the workers in this sector.