Norfloxacin eye drops and preparation method thereof

The invention discloses norfloxacin eye drops and a preparation method thereof. Every liter of the eye drops comprises 2.4-3.5g of norfloxacin, and the pH value of the norfloxacin is regulated to 5.0-5.6 by using a pH regulator. The preparation process has a simple and feasible flow, the solubility and application stability of nofloxacin can be improved, the content and antibacterial effect of active ingredients of the medicinal solution can be guaranteed. The norfloxacin eye drops have a relatively good treatment effect on bacteria infective ocular diseases, in particularly bacteria infective ocular diseases caused by drug-resistance bacteria.