In order to study the effects of Nano -cellulose on the high temperature properties and rheological properties of modified asphalt, the conventional technical indices of three different types for Nano -cellulose modified asphalt were compared. Then, the dynamic shear rheological test (DSR) was applied to analyze the rheological property of modified asphalt. The results indicat that Nano-cellulose can effectively improve the hightemperature stability, anti-rutting and anti-deformation performance of modified asphalt; the higher the Nanocellulose content is, the higher the performance of modified asphalt will be; TEMPO-oxidized wood cellulose has the best effect on improving the road performance of modified asphalt.