In order to solve the performance problem of traditional thin-ayer overlay such as the poor water stability and easy cracking,and improve the service life and service level of thin-layer overlay, the traditional thin-layer overlay technology was improved,and a super viscous fine overlay structure was developed.The test results of the super viscous tough asphalt,NovaBinder and high viscous asphalt Mused in the super viscous fine overlay show that the overall performance of super viscous tough asphalt is better than the other two kinds of high viscous asphalt.On the basis of AC dense gradation and OGFC open gradation,the semi open gradation of super viscous fine overlay was designed.Then the performance of high-temperature rutting resistance,low temperature cracking resistance,water damage resistance,dispersion,leakage,sliding resistance and drainage of super viscous fineoverlay,a super thin wearing course in the market and NovaChip B were studied experimentally.The results show that the performance of the high-temperature rutting resistance of super viscous fine overlay is the best at different test temperatures.At the same time,compared with the other two kinds of thin-layer overlays,the super viscous fine overlay has better performance of low-temperature cracking resistance,water damage resistance, load impact resistance and construction workability, and it's performance of sliding resistance and drainage also meets the requirements.