The CFRP strip is usually mounted vertically to reinforce concrete structure. As the minimum groove depth required for horizontally-mounted CFRP strip is small. There is a certain application value in the reinforcement of the old bridge when the groove depth is limited. In order to compare the interface bond performance of horizontally-mounted CFRP strips，externally-bonded and near-surface-mounted CFRP strips，the single shear pull-out experiment was used to analyse the bond capacity，failure mode，CFRP strain distribution，and loading end slip of specimen. The test results show that the interface bond performance reinforced by horizontally-mounted CFRP strips is stronger than that reinforced by externally-bonded CFRP strips，and weaker than that reinforced by near-surfacemounted CFRP strips. However，the average bond capacity of specimens reinforced by horizontallymounted CFRP strips can reach the 79% of that reinforced by near-surface-mounted CFRP strips. It is placed in a satisfactory level.