The invention provides a method for manufacturing an egg shell powder, an egg shell powder and applications thereof. The method mainly includes obtaining waste egg shells, drying after washing and sterilizing the waste egg shells with a high temperature water at 90 to 100 degrees of Celsius, grinding the egg shells so that the particle size is controlled to be from 0.01 to 1 mm to form an egg shell powder, screening and further drying the egg shell powder having a particle size of 0.01 to 1 mm so that the particle size is controlled to be 0.01mm ± 10% to generate a finished product of egg shell powder. The egg shell powder of the present invention can be used in facial cleansers to achieve whitening, exfoliating, and moisturizing functions. It can replace plastic soft beads so that washing water after being used for cleaning will not cause pollutions. In addition, the egg shell powder can adjust the water quality and soil acidity, when being applied to laundry detergents, no additional bleaching agent is required to be added.本發明是提供一種蛋殼粉末之製造方法、蛋殼粉末及其用途；主要是藉由先回收取得廢棄蛋殼後，令該廢棄蛋殼經90~100℃高溫水清洗殺菌後烘乾，再將該蛋殼經由研磨使其粒徑控制在0.01~1mm以構成蛋殼粉末，再使該0.01~1mm之蛋殼粉末經由過篩及乾燥使其粒徑控制在0.01mm±10％，以製成一蛋殼粉末之成品；藉此創新獨特設計，使本發明蛋殼粉末應用在洗面劑可達到美白、去角質、保濕的功能，可取代柔珠，清洗後之洗滌水不會造成自然界的污染，藉由蛋殼粉末可達到調解水質及土壤酸鹼質的作用，應用在洗衣劑可強化洗衣之清潔力，不需再額外添加漂白劑者。
