The invention belongs to the technical field of daily care articles, and discloses a natural preservative children plant sunscreen lotion and a preparation method thereof. The natural preservative children plant sunscreen lotion is prepared from the following raw materials: cetearyl glucoside, monoglyceride, C16-18 alcohols, 26# white oil, methylsilicone oil, ethylenediamine tetracetic acid sodium, glycerin, propylene glycol, carbomer, allantoin, xanthan gum, triethanolamine, D-panthenol, aloe extract, bamboo leaf extract, lotus leaf extract, tequila extract, and deion. The natural preservative children plant sunscreen lotion has the advantages that by adding the plant extracts as sunscreen components and preservative components, the use of chemical synthetic sunscreen agents and preservatives is avoided, the irritation is reduced, the safety is improved, and the sunscreen lotion can be applied to children formula.