Based on the established limit state equation and connected with a large amount of statistic analysis of testing data, central point law in first order second moment method (FOSM) is adopted to the reliability analysis of bonded rebars with inorganic material. The adhesive anchorage design suggestion of bonded rebars with inorganic material is proposed. By means of comparing the calculation results to experimental results, it can be concluded that the calculation methods of anchorage length can be used to the calculation of designing concrete bonded rebars.