The invention discloses a contact lens for treating xerophthalmia. The contact lens is a ball coronary-shaped corneal contact lens (1) which is mainly composed of a soft layer (7) and a hard layer (8), wherein the two parts are made in manners of plane bonding and hot-press molding; a micro-fluid channel (3) and a hollow cavity (4) are formed inside the contact lens; the hollow cavity (4) is filled with a liquid medicine (5); one end of the micro-fluid channel (3) is communicated with the hollow cavity (4); and the other end of the micro-fluid channel (3) is communicated with a liquid outlet (2), and thus the micro-fluid channel (3) is communicated with outside of the corneal contact lens (1). Through reasonable arrangement and improvement of materials of contact lenses and internal structures of lens pieces, the contact lens is used as a medicine delivery system, and compared with a conventional treatment mode of eye drops, the contact lens has the advantages that multiple inconveniences of conventional eye drop treatment modes are overcome, the biological utilization rates of medicines are effectively increased, the retention times of the medicines on corneas are prolonged, and automatic and long-lasting medicine administration treatment on patients suffering from xerophthalmia is achieved.