The invention discloses a steamed stuffed bun capable of being boiled and a preparation method thereof; wrappers of the steamed stuffed buns adopt starch and water as main raw materials; the steamed stuffed bun capable of being boiled is prepared by gelatinizing the starch and water, kneading a dough to prepare wrappers with strong plasticity, preparing steamed stuffed buns by wrapping stuffing with the wrapper, shaping to obtain various shapes, and fixing the shapes to obtain the steamed stuffed buns capable of being boiled. The wrapper obtained in the invention is waterproof since starch is gelatinized into a film, and the obtained steamed stuffed bun not only can prevent penetration of stuffing soup juice, but also can be boiled with water for eating. The steamed stuffed bun can be both steamed and boiled, is suitable for both spicy hot pots and chafing dishes, and widens the consumption approach of steamed stuffed buns.