Lacrimal passage drainage support

The utility model discloses a lacrimal passage drainage support, and relates to a medical instrument, in particular to a structural improvement of the lacrimal passage drainage support. The lacrimal passage drainage support comprises a drainage tube (1). A silica gel cap (2) is arranged at one end of the drainage tube (1) and is a tube body, wherein one end of the tube body is closed, and the longitudinal section of the tube body is in a U shape; the drainage tube (1) is arranged at the closed end of the silica gel cap (2) and communicated with the silica gel cap (2), and a ligature (3) for knotting the free end of the drainage tube (1) is connected to the inner wall of the closed end of the silica gel cap (2). The lacrimal passage drainage support has the advantages of being reasonable in design, simple in structure, low in manufacturing cost, convenient to operate and good in treatment effect.