The invention discloses a sulfone polymer and an application of tableware thereof, and belongs to the technical field of special engineering plastics. The sulfone polymer has a repeating unit with a structure as shown in a formula I, the transparency of the sulfone polymer is 81-95%, the haze is 0.1-2, the yellowness index is 0.5-5, the melt flow rate is 15-50g/10min, and the sulfone polymer has the high temperature resistance, is not easy to mildew, and is particularly suitable for preparing the food hygiene tableware. The invention discloses the tableware, kitchen utensils and drinking utensils which are made of PPSU pure resin or PES pure resin as a base material, are safe and sanitary tableware, and overcome the use defects that the chopsticks made of materials, such as existing bamboochopsticks, plastic melamine chopsticks, stainless steel chopsticks, etc., are easy to generate bacteria, volatilize the toxic substances, scald and the like.