The invention discloses a power grid equipment area convection weather forecasting method based on a cross correlation tracking method, comprising the steps of: determining radar echo motion vector characteristics in dependence on radar historic data; performing extrapolation calculation on radar echo and wind fields in dependence on the radar echo motion vector characteristics to obtain extrapolated radar echo and wind fields; and performing superposed display and analysis on extrapolated radar echo and wind fields, and power grid equipment geographic information. In the power grid equipment area convection weather forecasting method, radar echo is extrapolated to obtain motion vector characteristics of future radar echo; nowcasting of radar echo and wind fields in future is performed by utilizing the motion vector characteristics; and the technology is applied to an electric power GIS system to obtain power grid area equipment echo intensity and wind field forecasting early warning information.