In order to effectively control the cost of cement stabilized coal gangue mixture and fill the gap in the current highway engineering quota in Shaanxi Province. Based on the cement stabilized coal gangue pavement base engineering project, the technical characteristics and construction technology of cement stabilized coal gangue pavement base are studied, divide the supplementary quota sub-items reasonably, the work content and the consumption quota of manpower, materials and machines in the construction process are measured. The Pau Ta criterion and linear interpolation method was used to identify and correct the gross errors in the sample data, calculate and summarize, compiled the supplementary quota of cement stabilized coal gangue pavement base, and the results are calculated and analyzed. The results show that the supplementary quotas were all at a reasonable level, which can be used as the pricing basis for the construction of cement stabilized coal gangue pavement base. The research results can reference for the budget quota preparation of cement-stabilized coal gangue pavement base projects in Shaanxi Province and even in the whole country.