Abstract: The typical failure mode between fiber reinforced polymer(FRP) and concrete interface is the peeling of FRP and concrete base, so the determination of effective bonding length and peeling bearing capacity between FRP and concrete base is a very important problem. Based on the double shear test, the bonding stress and strain of aramid fiber reinforced polymer(AFRP)-concrete interface under different loads with different groups of specimens were obtained. Moreover, through regression analysis of the test data and modification based on the ACI440.2 R-08 model, a new effective bonding length correction model for AFRP-concrete interface was obtained.