Unearthed painted pottery is fragile and thus difficult to preserve. In our study, gelatin and waterborne fluorocarbon were selected as reinforcement materials for wet painted pottery. Painted pottery shards having four kinds of color were reinforced using different concentrations of these materials. The strength, color and glossiness of the changes were tested and compared. The results show that the ideal concentration of gelatin is around 1%, and that of the waterborne fluorocarbon is around 20%. Experiments comparing reinforcements were implemented on two types of painted pottery (with and without a bottom layer) as well. It is found that 1) for gelatin, the appearance changes of the painted pottery with a bottom layer are relatively smaller than those without a bottom layer after reinforcement and aging; 2) for waterborne fluorocarbon, the appearance changes are similar after reinforcement only, but the results are reversed after aging. In a practical application, we used gelatin and waterborne fluorocarbon to reinforce three pieces of wet painted pottery unearthed from Xuyi County and achieved effective results.