A new type of domestic medium temperature curing structural adhesive film ACTECH^?1206F was developed. Its physical and chemical properties were characterized by DSC, rheology, volatilization and weight per unit area, and its bonding properties to different substrates were characterized by single lapping shear strength, roller stripping strength and plane tensile strength, and were compared with the current commonly used imported adhesive film FM-73. The results showed that compared to FM-73, ACTECH^?1206F film performs well in terms of Al-Al single lap shear strength at room temperature, carbon fiber composite single lap shear strength at room temperature, and plane tensile strength of honeycomb sandwich structure at room temperature. Al-Al single lap shear strength at room temperature can reach 37.7 MPa, the single lap shear strength of carbon fiber composite (BA3202W) at room temperature can reach 28.8 MPa, and the plane tensile strength of honeycomb sandwich structure can reach 10.32 MPa at room temperature. At the same time, the fracture morphology of ACTECH^?1206F resin casting body was observed by SEM. The fracture is rough and has obvious zigzag cracks, which is typical ductile fracture, indicating that ACTECH^?1206F resin has good toughness.On the whole, the overall performance of ACTECH^?1206F film is roughly the same as that of FM-73, which can meet the demand for medium-temperature curing structural film in the field of civil aircraft composites.