Among the properties required for producing PVC resin of good quality, the particle morphology (size, primary particles, agglomerates) skins, pores; etc.) plays an important role in processing and performance of products. Three main physical transitions are involved in self-structuring the grains of Suspension PVC: nucleation, aggregation and growth. All of these processes are affected by many physical transitions and chemical phenomena that are inter-related and many are;complex functions of polymerization conditions (i.e., agitation, temperature; stabilizers, etc.). Because of this multiscale complexity, the relationships between suspension polymerization conditions and morphology have yet to be well-understood. In spite of all these difficulties, a literature survey of the available research nevertheless provides a comprehensive and descriptive insight into mechanisms governing PVC particle formation accounting for the effect of the process variables.