The invention discloses algae skin barrier repairing cream and a preparation method thereof. The repairing cream comprises a phase A, a phase B, a phase C and a phase D, wherein the phase A comprisescaprylic/capric triglyceride, squalane, isononyl isononanoate and polydimethylsiloxane; the phase B comprises glycerin and 1,3-propylene glycol; the phase C comprises panthenol; and the phase D comprises 1,2-hexanediol, butanediol, purslane, fucus, hexylene glycol, caprylyl glycol, xanthan gum, butylene glycol, fructan, phenoxyethanol and yeast polysaccharides. The preparation method comprises thefollowing steps of (1) heating and stirring the phase A until the phase A is dissolved; (2) performing heating, stirring and heat preservation on the phase B; (3) performing mixing, emulsifying, homogenizing, heat preservation and stirring on the phase A and the phase B; (4) cooling a mixture to 60 DEG C after heat preservation is finished; (5) adding the phase C, and performing heat preservationand stirring; (6) performing cooling and stirring; and (7) adding the phase D, and performing stirring, inspecting and discharging to obtain the finished repairing cream. The repairing cream providedby the invention also has light stability and no irritation under the condition of not adding spices and pigments.