The invention belongs to the technical field of cosmeceuticals and a preparation method thereof, and discloses a preparation used for whitening and conditioning skins, and a preparation method for thepreparation. The preparation is prepared in a way that conventional traditional Chinese medicines, leguminous plants and animal pancreas are combined at a certain proportion. All raw materials are equivalently compatible, and a mutual fusion function of all raw materials is obviously enhanced so as to perform the effects of maintaining beauty, keeping young, carrying out moisture retention and moisture preservation, preventing and curing rhagadia, cleaning skins, removing dirt, invigorating the circulation of blood, dredging collaterals and removing edema. Under a function that all raw materials are effectively cooperated, a function of skin moisture preservation and water replenishment is accelerated, so that skin cells finish being conditioned from inside to outside, skin metabolism isaccelerated, and a purpose of whitening and conditioning the skins can be realized. The preparation method for the preparation has a convenient operation process and little operation equipment, has alow requirement on operation personnel, is low in cost, is safe and reliable, does not have any toxic or side effect, still keeps a principle of maintaining an ecological balance and protecting a living environment in a medicine material collection process and is suitable for individuals of each age group.