The invention relates to the field of building materials, in particular to an energy-saving and environment-friendly material. The energy-saving and environment-friendly material is prepared from sepiolite, mineral fibers, silicate, calcium carbonate powder, silicon aluminum oxide powder, foam cement, river sand micro powder, crushed crude pearlite, a water-retaining agent, an anti-cracking agent, glass beads, polyphenyl granules and land plaster. The energy-saving and environment-friendly material is mainly used for heat preservation of outer walls of buildings and has the advantages that the application range is wide, and the energy-saving and environment-friendly material can be used for heat preservation of the outer walls of the buildings and can also be used as other heat preservation slurry; a main structure can be effectively protected; fire, water and corrosion are avoided; the influence of a thermal bridge is basically eliminated; the damp condition of the walls is improved; the indoor temperature can be kept stable, the buildings are not hot in summer or not cold in winter, and energy saving and environment friendliness are achieved.