A kind of latent heat storage microcapsule was prepared using lauric acid as core and melamine-formaldehyde resin as shell via in-situ polymerization. The core-to-shell mass ratio was 1:1. The chemical composition, thermal properties and surface morphology of the obtained microcapsules were characterized by FT-IR, DSC and SEM, respectively. The results show that the obtained microcapsules have spherical appearance and porous network structures. The melting point and fusion enthalpy of the microcapsules are 43.7℃ and 84.96J•g-1, respectively, which mean the microcapsules possess a good potential as a latent heat storage material in latent heat thermal storage applications.