Provided are a vascular stent, a conveying balloon thereof, and an implanting system. The vascular stent comprises a flexible light-transmitting body (1). The flexible light-transmitting body (1) is provided with a hardenable channel (2). The hardenable channel (2) is arranged in the circumferential direction and the axial direction of the flexible light-transmitting body (1). The hardenable channel (2) is used for filling a liquid photocuring supporting material (3), and the liquid photocuring supporting material (3) is cured after being illuminated so as to radially support the flexible light-transmitting body (1). In the present invention, by means of the characteristic that the liquid photocuring material is hardened into a fixed material after being illuminated, the flexible light-transmitting body is radially supported； by means of the hardenable channel extending in the circumferential direction and the axial direction, it can be ensured that the implanted vascular stent has a good radial supporting capability； and the vascular stent provided in the present invention has a simple structure, is convenient to implant and has lower cost compared with a metal stent.
