Mounting structure between frame to be fixed and wall

The utility model relates to the technical field of door and window installation, in particular to an installation structure between a to-be-fixed frame and a wall body, which comprises the wall body, the to-be-fixed frame 40 and a main body structure, an outer wall window opening is reserved at the position of the main body structure close to the outside, and the outer wall window opening is a notch type opening. The notch type hole and the main body structure are integrally formed in a pouring mode, and the frame to be fixed is installed in a mode of being tightly attached to the notch type hole. And the opening adopts a notch design, so that installation is convenient, and access during installation can be controlled. And meanwhile, the wind pressure resistance, the water tightness and the air tightness are enhanced. Rainwater leakage caused by sealing failure of the door and window body due to serious plastic deformation, pull crack or damage and the like generated under the wind load effect is avoided. T