Abstract: The use of permanent formwork can realize the rapid construction of concrete structures, shorten the cycle time, and improve the overall structural load-bearing capacity and durability, and the interface bond shear performance is the key to ensure that the permanent formwork and concrete work together. In this paper, ultra-high-performance concrete (UHPC)-normal concrete (NC) composite specimens were designed and fabricated, and the effects of the formwork inner surface shear bond treatment (convex or concave shear nails, horizontal or vertical shear grooves), the formwork type (bottom molding, side molding) on the shear resistance of the UHPC-NC bonding surface were systematically investigated through double-sided shear tests and theoretical analysis. The results show that the typical damage patterns of the specimens are as follows: a type of damage, only bond surface shear damage; b type of damage, bond surface shear damage and NC shear damage; c type of damage, axial compression failure of ordinary concrete in core zone. After the surface treatment of the formwork, the bearing capacity of the specimen has been improved. Among them, the ultimate load-bearing capacity of the components with protruding shear studs can reach up to 355kN, which is far higher than that of components with recessed shear studs and transverse shear slots, the convex shear stud setting effect is the best; Moreover, for the shear groove measures, the effect of horizontal shear groove is better than that of vertical shear groove. Secondly, the bonding performance of UHPC-NC interface increases with the increase of the hole depth of concave shear studs. When UHPC permanent formwork is used as bottom formwork, the ultimate load-bearing capacity of the specimen is 122.9% higher than that of the specimen used as the side formwork, its effect is better than that of side formwork; Finally, based on the existing bond slip model analysis, considering the influence of template surface treatment, the bond slip model of UHPC-NC interface is established.