A clinical preparation of scutellarin and the preparation method thereof. The active agent contains the compound shown as formula (I). The amount of said active agent in the injection is 0.01ˆ¼0.03 g/mL and the amount of said active agent in the lyophilized powder for injection is 4.7ˆ¼41.3% by weight percent, calculated on the basis of scutellarin. The preparation method thereof does not need a buffer pair of organic acid and organic alkali to adjust stable pH value, while contains the steps that adding meglumine into the suspension of scutellarin and agitating, forming a clear solution, cooling to -2ˆ¼1–¡ and being settled for more than 8 hours, filtrating through 0.45ˆ¼0.8µm filter membrane, then being made into scutellarin clinical preparation by conventional procedures.