The invention provides a cyclodextrin inclusion method for erianin, which comprises the following steps that: (1) hydroxypropyl-beta-cyclodextrin is added into water and is stirred to be completely dissolved, the mass ratio of the hydroxypropyl-beta-cyclodextrin to the water is 1 to between 3 and 5; crystalline powder of the erianin is added with absolute ethyl alcohol and is completely dissolvedby ultrasonic vibration, and the mass ratio of the erianin to the absolute ethyl alcohol is 1 to between 500 and 2,000; (2) a hydroxypropyl-beta-cyclodextrin water solution is placed in a water bath and is stirred, then an erianin alcohol solution is dripped into the hydroxypropyl-beta-cyclodextrin water solution, and the adding amount is controlled that the mass ratio of the erianin to cyclodextrin is equal to between 1 to 8 and 1 to 11; the mixture continues to be stirred for 2 hours after the dripping is finished, is kept stand for 2 hours and then continues to be stirred for 1 hour; and (3) the mixed solution is placed in the water bath at a temperature of 55 DEG C to reclaim alcohol through pressure reduction concentration, and is placed in the water bath at a temperature of 75 DEG Cfor further concentration when the solution is translucent and glutinous, and a concentrated solution is dried under vacuum to produce a powder product.