the vehicle-mounted air circulation cushion further comprises a breathable mat base playing a role in air guide and ventilation, and a breathable reinforcing mat that is in fit connection with a surface of an upper part of the breathable mat base and used for sealing a peripheral connecting part;

the vehicle-mounted air circulation cushion further comprises an air circulation assembly that is in modular detachable connection with the breathable mat base, an accommodating groove that is in shape fit with the air circulation assembly is formed in one side of the breathable mat base, and an opening that is in position and shape fit with the air circulation assembly is correspondingly formed in the breathable mesh enclosure;

the air circulation assembly comprises a fan module that is configured to deliver external air into the breathable mat base for air circulation;

a plurality of ventilation holes for ventilating are densely formed in the breathable mat, the breathable reinforcing mat and the breathable mesh enclosure;

a plurality of air deflectors that spread from the position of the accommodating groove to another side are integrally formed inside the breathable mat base, and the external air from the position of the air circulation assembly is divided into a plurality of branches to flow into a linear air duct between every two adjacent air deflectors; and

the vehicle-mounted air circulation cushion further comprises a plurality of arc-shaped air ducts arranged on the air deflectors in a form of water waves, the arc-shaped air ducts and the various linear air ducts form a staggered ventilation structure, circulating ventilation and upward air discharging.