Abstract: Marine polysaccharides are important biological macromolecules and important sources of energy, and have a variety of biological activities. They have good moisturizing properties, can protect the skin and delay skin aging used in skin care products. Simultaneously, they are excellent heavy metal antidote and have better chelation of heavy metal ions. They have a strong antibacterial effect on staphylococcus aureus and epidermophyton floccosum which infect human skin easily, and also have effect on candida albicans and gypsum dermatophytes. Marine polysaccharides are non-toxic, without stimulation excellent natural skin care products materials.