A walking-assisted air-jet insole, comprising an insole base, wherein a plurality of pressed-air outlet units are provided on the insole base and are configured to generate airflow based on stepping pressure; each of the plurality of the pressed-air outlet units comprises a cavity for retaining air; an upper part of the insole base is provided with an upper air hole and the upper air hole communicates with the cavity; a lower part of the insole base is provided with an air sac part, and the air sac part is elastically deformed and restored based on the stepping pressure; a volume of the cavity is changed based on elastic deformation and restoration of the air sac part wherein a lower end of the air sac part is provided with a convex column, and the convex column moves up and down based on the stepping pressure; the cavity comprises an upper cavity portion and a lower cavity portion from top to bottom; an upper end of the upper cavity portion is connected to the upper air hole, an inner diameter of the upper cavity portion gradually increases from top to bottom to form a bowl-shaped containing space, and the bowl-shaped containing space is configured to contain an upper end of the convex column when the convex column is driven to move upward; the air sac part comprises an annular elastic thin wall; and the lower cavity portion is formed by enclosing with the elastic thin wall, an inner diameter of the lower cavity portion gradually decreases from top to bottom, and a lower end of the lower cavity portion is connected to the convex column; and the lower part of the insole base is provided with a plurality of first pits for containing air sac parts of the plurality of pressed-air outlet units, and gaps for elastic deformation of the air sac part are formed at intervals between peripheral side walls of the plurality of first pits and the air sac parts. a plurality of pressed-air outlet units are provided on the insole base and are configured to generate airflow based on stepping pressure; each of the plurality of the pressed-air outlet units comprises a cavity for retaining air; an upper part of the insole base is provided with an upper air hole and the upper air hole communicates with the cavity; a lower part of the insole base is provided with an air sac part, and the air sac part is elastically deformed and restored based on the stepping pressure; a volume of the cavity is changed based on elastic deformation and restoration of the air sac part wherein a lower end of the air sac part is provided with a convex column, and the convex column moves up and down based on the stepping pressure; the cavity comprises an upper cavity portion and a lower cavity portion from top to bottom; an upper end of the upper cavity portion is connected to the upper air hole, an inner diameter of the upper cavity portion gradually increases from top to bottom to form a bowl-shaped containing space, and the bowl-shaped containing space is configured to contain an upper end of the convex column when the convex column is driven to move upward; the air sac part comprises an annular elastic thin wall; and the lower cavity portion is formed by enclosing with the elastic thin wall, an inner diameter of the lower cavity portion gradually decreases from top to bottom, and a lower end of the lower cavity portion is connected to the convex column; and the lower part of the insole base is provided with a plurality of first pits for containing air sac parts of the plurality of pressed-air outlet units, and gaps for elastic deformation of the air sac part are formed at intervals between peripheral side walls of the plurality of first pits and the air sac parts.