Abstract: The data of the sugar content of the honeydew melon and meteorology in Dengkou County were used for a correlation analysis to determine the suitable planting region of the honeydew melon. Agro-meteorological indices which influenced the sugar content of honeydew melon were determined. The comprehensive assessment model was established by stepwise regression method. The quality regionalization of honeydew melon in City star4.0 by using small grid computing model was made.

Key words: Honeydew melon, Honeydew melon, Sugar content, Meteorological index, GIS, Quality regionalization