Abstract: In view of the significant data discrepancy among the bonding and peeling strength of aluminum alloy in engineering practices, and the fact that the bonding reliability needs to be improved urgently, testing and verification of bonding and peeling strength of metal to metal and honeycomb sandwich structure for aluminum alloy under normal temperature and pressure were carried out. The influence of surface treatment processes of test samples and whether there was adhesive fillet around the sample on the bonding and peeling strength were analyzed. The results show that keeping a fillet of 0.5 mm to 1 mm wide around the sample was conducible to improve the peeling strength of the sample. The bonding surface of test sample that was only cleaned by organic solvent had the lowest peeling strength and the data dispersion was large. After the bonding surface of test sample were sanded and cleaned, the peeling strength of sample was greatly improved, but the data dispersion was still large. Phosphoric acid anodizing treatment on the bonding surface of the test sample could improve the peeling strength of the sample to the maximum extent. The obtained results may provide reference for the optimization of bonding process.