This invention proposes a shoe edge guiding structure, comprising a fixed sleeve and a constraint sleeve, both with U-shaped cross-sections. Both the fixed sleeve and the constraint sleeve include an arc-shaped wall in the middle and planar walls on either side of the arc-shaped wall. The fixed sleeve is positioned inside the constraint sleeve, and the opening directions of the fixed sleeve and the constraint sleeve are the same. The fixed sleeve is subjected to an elastic tension that drives it to move towards the constraint sleeve, causing the fixed sleeve to abut against the constraint sleeve. An elongated guiding channel is formed between the fixed sleeve and the constraint sleeve, consisting of a shaping channel and an entry channel arranged front and rear. In the shaping channel section, the arc-shaped walls of the fixed sleeve and the constraint sleeve abut against each other. In the entry channel section, the arc-shaped walls of the fixed sleeve and the constraint sleeve are spaced apart. The planar walls of the fixed sleeve and the constraint sleeve are also spaced apart.
