The phenomenon of recoiling is easy to occur in the demolition of framed buildings by directional blasting, which poses a great threat to the protection target of the rear side protection.Combined with the design and construction practice of directional blasting demolition of frame structure buildings in complex urban environment, the method of controlling the recoiling of frame structure buildings is analyzed and discussed, and the rationality of the method is verified by numerical simulation with LS-DYNA dynamic finite element software.Practical results show that the scheme of raising the blasting incision to the second floor and not drilling and blasting the columns behind the incision can effectively prevent or reduce the recoil phenomenon of the frame structure building.After the blasting, the columns of the first floor and the rear side of the building are maintainedand broke off at the junction of the first and second floors.The front column of the first floor was broken off by the impact of the collapse of the building.The height of the blasting pile of the building is not significantly different from that of the 1st floor blasting.The blasting effect is good, and the front bottomcolumn can be used as a buffer layer to greatly consume the kinetic energy of the collapse impact of the building, weaken the vibration effect of the ground contact, and reduce the impact of the collapse vibration on the surrounding environment.