The invention discloses a rizatriptan benzoate oral spray taking water as a solvent and containing the following components by content: 3.6-14.5 g/100 ml of rizatriptan benzoate, 0.1-50 g/100 ml of solubilizers, 0.05-5 g/100 ml of sorbefacients and 0.01-3 g/100 ml of flavoring agents. The rizatriptan benzoate oral spray sprays for drug administration through an oral cavity or a hypoglossis, and then drugs can be absorbed by mucosae of the oral cavity or the hypoglossis so as to avoid liver first-pass effect and food influence and realize fast absorption, quick effect and high bioavailability; in addition, the rizatriptan benzoate oral spray is convenient to use without being taken with water during drug administration and is especially suitable for patients who are not obedient to oral administration and injection drug administration; and besides, the rizatriptan benzoate oral spray is a liquid formulation, has no dust in the production process, and has easy labor protection and lower cost of mass production.