The invention discloses a window type intelligent fresh air purification system. The window type intelligent fresh air purification system comprises a purification window composed of a frame A, a frame B, a frame C, a frame D and a frame E, the frame A, the frame B and the frame C are hollow rectangular frames, the frame A and the frame B are connected to the upper end and the lower end of the frame C, a communication I structure is formed by the frame A, the frame B and the frame C, the frame D and the frame E are located on the two sides of the frame C, and an air flue, a draught fan, a shutter and an outdoor exhaust opening are formed inside and outside the frame A; an air flue, a draught fan, a shutter and an indoor air inlet are formed inside and outside the frame B; the system has the beneficial effects that the ultra-high safety and the ultra-high energy saving are achieved, 24-hour all-weather purification detection is achieved, indoor environment pollution is solved, the system and a window are integrated, no space is occupied, and the system is suitable for being applied to many occasions of homes, schools, hospitals, office buildings, administration centers and the like.