The invention discloses a 
moisturizing lotion and a preparation method thereof. The method comprises the steps that glycerin, 
butanediol, a hydroxyethyl 
acrylate / 
sodium acryloyldimethyl taurate 
copolymer, a 
plant bionic sebum agent and the like are added into a water pot, the temperature is increased to 75 DEG C to 85 DEG C, stirring is conducted to be uniform, and heat preservation is conducted for 20 min for use; caprylic / capric 
triglyceride, dicaprylyl darbonate 
alcohol and the like are added into an oil pot, the temperature is increased to 75 DEG C to 85 DEG C, stirring is conducted to be uniform, and heat preservation is conducted for use; the above mentioned components for use, 
butanediol and the hydroxyethyl 
acrylate / 
sodium acryloyldimethyl taurate 
copolymer are pumped into an emulsifying pot to be subjected to homogenization for 3-5 min, heat preservation and stirring are conducted for 20 min, and then the temperature is lowered to 45 DEG C; a pre-dissolved PEG / PPG-17 / 6 
copolymer, EDTA disodium and the like are added to be stirred with essence to be uniform, a semi-finished product is obtained, and after the semi-finished product passes inspection, a finished product is put in storage. The 
moisturizing lotion is rich in natural 
active components and efficient moisturizing factors which are extracted from plants and can deep penetrate into a top 
skin layer; meanwhile, a natural 
skin moisturizing barrier is built, 
hydrophile-lipophile balance is adjusted, and the 
moisturizing lotion is a 
moisturizer which is safe, healthy, efficient, natural, pure and special for northerners for use.