The invention relates to an auxiliary lifting mechanism of a presser foot of a computerized embroidery machine, which is designed aiming at the technical problem of poor structure of the auxiliary lifting mechanism (a cam mechanism) of the presser foot of the computerized embroidery machine. A link mechanism adopting three connecting rods is arranged in the auxiliary lifting mechanism of the presser foot and is in a Y shape, one end of the link mechanism is fixed in a casing of a machine head by a shaft A, and the other two ends are respectively fixed at a slide block A and a slide block B. In a group of link mechanism comprising a three-hole connecting rod A, a two-hole connecting rod B and a two-hole connecting rod C, the three-hole connecting rod A is bent in an arc shape; and a hole C1 of the three-hole connecting rod A is connected with a hole A2 of the two-hole connecting rod B by a pin shaft, and a hole A1 of the three-hole connecting rod A is connected with a hole A3 of the two-hole connecting rod C by a pin shaft. The invention has high running accuracy, small noise, convenient maintenance, assembly and use, good movement matching synchronism and stability, low productioncost and extensive application range and is suitable for a high-speed computerized embroidery machine and similar tailoring equipment.