Ceramic granules having high reflectivity and a preparation method for the same comprise sand core particulates and at least one coating thereon, wherein said sand core particulates contain calcined tobelite that is obtained by calcining the tobelite ore at 700-1200° C.; and said sand core particulates are coated with an inorganic coating, and then calcined at 800-1200° C. to obtain ceramic granules. Said ceramic granules have a particle size of 0.1-3.5 mm, and have a solar reflectivity SR of not lower than 80% and a staining index DL* of lower than 6%. Said ceramic granules produce a solar reflectivity of not lower than 70% when being applied to the asphalt roll/sheet and a solar reflectivity of not lower than 72% when being applied to the polyurethane foam sheet.