Favipiravir pharmaceutical composition containing different particle size ranges

The invention discloses a favipiravir pharmaceutical composition containing different particle size ranges. According to special particle size distribution and preparation process, the problem of dissolution rate of favipiravir preparations in water is solved, the favipiravir is rapidly released, the human bioavailability is provided, and the problems that the dissolution rate of favipiravir in the preparation is limited, in-vivo absorption is influenced and the clinical treatment aim is achieved due to different pH value environments are solved. The invention also provides a method for preparing the favipiravir pharmaceutical composition.