Abstract: The granules prepared in powder production have many kindsof forms. Microspheres have so many outstanding properties which otherirregular granulas do not have such as good fluidity, high pile density, gooddispersion and decreasing stress concentration as the filler of thecomposite, that they have been paid more attentions inproductions and daily life. In this paper, advances in preparationmethods as well as its principle andapplications of solid, hollow and porous microspheres in recent years arereviewed.