Abstract: The objective analysis scheme for enhanced regional numerical prediction system (ENFS) newly established in Guangzhou Regional Meteorological Centre (GRMC) is described,in which three stages are employed.The first stage is multivariable optimal statistic interpolation (OI) with all kinds of observations using the outputs of T63 as its first guess; the second stage is univariable successive correction method(SCM), and the last stage is a simple variation adjustment. Through these stages, not only the large scale features can be maintained in the analysis, but the mesoscale information cooperative to the forecast model can also be contained, while the analysis variables have a good dynamical agreement.The circulation for Typhoon 9509 is analysed as a case study before its landing, and the track is predicted to illustrate the properties of this scheme.