The invention relates to an aeroponic method for aquilaria sinensis. The aeroponic method includes manufacturing aeroponic tanks, forming planting holes in tank covers and manufacturing moisture retention transparent covers; cleaning and disinfecting the aeroponic tanks and colonization cotton by the aid of clear water and 0.03% hydrogen peroxide before colonization is carried out; removing earth-culture lateral roots of selected aquilaria sinensis earth-culture seedlings with good growth vigor and zero disease and pest injury, then thoroughly cleaning the aquilaria sinensis earth-culture seedlings, disinfecting the aquilaria sinensis earth-culture seedlings by the aid of hydrogen peroxide for a moment, then planting the roots of the aquilaria sinensis earth-culture seedlings into the planting holes of the aeroponic tanks and colonizing the aquilaria sinensis in the planting holes by the aid of the colonization cotton; directly spraying nutrient solution and water in aerial fog states to the roots of the aquilaria sinensis to cultivate the aquilaria sinensis after the aquilaria sinensis earth-culture seedlings are colonized; pruning root hair after the root hair grows and has sufficient lengths. The aeroponic method has the advantage that the root hair is not planted in earth, can be conveniently pruned and can be repeatedly cultivated and pruned.