PURPOSE: A manufacturing method of a natural soap is provided to lower skin stimulation, to improve moisturizing and washing and to treat skin troubles such as atopy for users. CONSTITUTION: A manufacturing method of natural soap comprises a step of preparing vegetable oil; a step of obtaining a first result by mixing the vegetable oil and lard; a step of obtaining a second result by mixing purified water and caustic potash; a step of obtaining a third result by mixing the first result and second result; a step of obtaining a fourth result by mixing the third result, lespedeza bicolor oil, alum, and sophora root; a step of obtaining a final result by mixing the fourth result, chamomile, tea tree, and lavender essential oil; a step of pouring the final result into a mold and measuring the final result.
