To study and predict the failure mode and failure load of bolt joint for T700 carbon/epoxy composite, a progressive damage model of T700 carbon fiber composite [453/903/-453/03]s with double-lap bolt joint based on Tsai-Wu criterion was established in this paper. By studying damage patterns, it was found that 90 ° layer damage in composite laminate was most serious; damage in ±45 ° layer was less than 90 ° layer; 0 ° layer damage was the least compared with other layers. At the same time, progressive damage models were adopted in this paper to analyse the effect of different E/D on failure load of bolt joint. When the value of E/D was less than or equal to 3, it was found that the increase of E/D could significantly improve the failure load. While E/D was more than 3, the improvement of failure load was not obvious by increasing of E/D. The results show that the prediction error is within 8%, and the progressive damage model can well predict failure mode and failure load of bolt joint.