The invention discloses a whitening cream and a preparing method thereof, which aims to provide a stable whitening cream with high safety, good skin whitening effect; the technical scheme is: the whitening cream is made from, by weight percentage, 0.5-0.3% of tranexamic acid, 0.5-3.5% of nicotinamide,4- 0.2-1.5% of potassium methoxysalicylate, 0.005-0.04% of glycyrrhiza glabra root extract, 0.5-2% of leucojum extract , 0.1-1.5% of saxifraga stolonifera extract, 3-6% of emulsifier, 2-5% of co-emulsifier, 10.1-23.2% of grease, 0.05-0.1% of antioxidant, 0.05-0.1% of disodium EDTA, 0.2-0.5% of allantoin, 4-10% of polyhydric alcohols, 2.25-8.55% of humectant, 0.2-0.5% of aqueous thickener, 0.5-1% of thickened stabilizer, 0.5-3% of anti-allergic conditioner, 0.8-1% of preservative, 0.5-1.2% of pigment and the margin is water; the invention belongs to the field of cosmetics technology.