Seat bag for children

The invention discloses a seat bag for children. The seat bag comprises a bag body (1) for supporting an infant, a hood (2) for sunshading and a filtering mechanism (3) for filtering air, wherein the hood (2) is connected to the bag body (1); when the hood (2) is connected to the bag body (1), a sealed space capable of accommodating the infant is formed between the bag body (1) and the hood (2); the filtering mechanism (3) is arranged on the hood (2) and used for filtering air and enabling clean air to enter the sealed space; the filtering mechanism (3) comprises a filter (33) and a fan (32) arranged at the outer side of the filter (33); the filter mechanism (3) comprises the filter (33) and the fan (32). The invention aims at providing a seat bag with an air filtering function for children.