In this experiment, oxidation-nitriding carbon nanomaterials (OCN) were successfully synthesized by a acid etching and oxidation method,and the adsorption-desorption performance of OCN on U(VI) in water was investigated.The effects of pH,temperature,OCN dosage,initial U(VI) concentration,contacting time were investigated by static batch experiments,and the adsorption mechanism was discussed.The sorption experiments indicated that OCN exhibited superior adsorption performance to U(VI),When at pH 5, the initial concentration 10 mgU(VI) L-1 ,OCN dosage 200mg/L and 30℃ ,the adsorption efficiency of OCN to U(VI) reached 98.9%.Compared with the unmodified graphite nitride carbon (g-C3N4), the adsorption performance of U(VI) was improved by about 30%,and the adsorption reaction reached the adsorption equilibrium at 10 min.The adsorption process is greatly affected by the pH of the solution and is less affected by other factors such as temperature. The pseudo-second-order kinetic equation and Langmuir model fit the adsorption process well, and the adsorption process of OCN to U(VI) is spontaneous endothermic process. The results of adsorption desorption experiments show that OCN has good reusability and a broad application prospect in the treatment of U(VI)-containing wastewater as a high-performance adsorbent.