The invention provides micro-powder containing an eggshell membrane, a tablet using the micro-powder containing the eggshell membrane, a preparation method for the micro-powder containing the eggshell membrane and a preparation method for the tablet using the micro-powder containing the eggshell membrane. Compared with the prior art, the invention has the advantages that the digestive absorption rate of the eggshell membrane is further increased, and the micro-powder with the eggshell membrane is characterized in that the average volume particle size is less than 6 microns and/or the maximum volume particle size is less than 20 microns.
