The invention relates to a method for preparing an aspirin enteric-coated micro-pill capsule. The method comprises that: the method selects 50 to 80g of aspirin with 0 to 300 microns, uses 1 to 5g of povidone and 0.1 to 0.8g of hydroxypropyl methylcellulose and uses 5 percent ethanol solution in percentage by mass as a wetting agent to prepare an active pill core; the method selects 3 to 60g of acoating auxiliary material with enteric-coated function, 0.3 to 6g of a plasticizer, 0.01 to 0.06g of a releasing agent, 0.1 to 0.5g of talcum powder and 5 to 30g of purified water to prepare a solution for coating; and a micro-pill is directly filled to prepare the aspirin enteric-coated micro-pill capsule. The preparation method is simple, low in cost, beneficial for environment and favorable for industrialized production; and the prepared aspirin capsule has good stability and obviously reduces generation of side effect.