The invention discloses a semitransparent polyphenyl ether compound and a preparation method thereof. The components comprise 30 to 80 wt. % of polyphenyl ether resin, 20 to 70 wt. % of styrene-methyl methacrylate, 0 to 5 wt. % of processing agent and 0 to 1.5 wt. % of anti-oxygen agent. The compound of the polyphenyl ether and the styrene-methyl methacrylate copolymer maintains the excellent heat resistance and high intensity of voltage shock of the polyphenyl ether, has higher transparency and surface hardness, and has wide application fields such as food packaging utensil, lampshade, exterior component of electric equipment, and the like.