The invention discloses a mask containing load modified diatom mud. The mask is prepared from the following materials in parts by weight: 5 to 10 parts of skin nutritional agent, 10 to 20 parts of skin moisturizer, 10 to 20 parts of skin whitening agent and 20 to 30 parts of skin cleaning agent. In the mask containing the load modified diatom mud, a main ingredient of the modified diatom mud is opal, wherein the density is 0.3 to 0.5 / cm<3>, the moh's hardness is 1 to 1.5, the melting point is 1300 DEG C or more, the stability is high, and the opal can serve as a main material of cosmetic products, masks and the like. The modified diatom mud mask main utilizes adsorption performance of the diatom mud to adsorb matters in the skin to achieve a skin protecting and nursing effect, 100% naturalsilk has effects of effectively whitening and delaying skin aging, hyaluronic acid has a strong moisturizing function, collagen has effects of moisturizing, moisture retention, whitening, skin brightening, repairing and wrinkle prevention, and natural moisturizing factors NMF can fully achieve moisture retention and moisture making for the skin.