The invention discloses a dispersible solid preparation for preventing fruits from falling, and a preparation method and application thereof. The dispersible solid preparation is prepared from the following mass percentages of components: 1%-95% of 1-methylcyclopropene microcapsules, 1%-10% of dispersant, 1%-10% of wetting agent, 0.1%-10% of stabilizer, and the balance of solid carrier, wherein the content of 1-methylcyclopropene in the dispersible solid preparation is 0.01%-4.75%. The dispersible solid preparation obtained by the invention has low moisture content, almost neutral pH value, excellent suspension property, wettability and heat storage stability, and the fineness up to 99.6%, so the preparation will not block nozzles. The sedimentation speed of the preparation is low, so thepreparation can continue to play drug roles for a certain period after application, satisfy the requirement of uniform distribution of medicinal liquid in an open orchard environment system and guarantee the action time, and has a very good effect of preventing fruit falling during harvest, and can prolong harvest time.