The invention discloses a method for determining the spatial distribution of the suitable transplanting period of flue-cured tobacco in a complicated hilly area. MODIS (Moderate Resolution Imaging Spectroradiometer) remote sensing image data and DEM (Dynamic Effect Model) altitude data are utilized and combined with ground observation data of the tobacco-growing area, a simulation method of the ten-day meteorology of the tobacco-growing area and the spatial and temporal distribution of soil moisture is constructed through mathematical modeling, main meteorological elements and the spatial and temporal distribution of soil moisture are extracted, the suitable meteorological factor and the soil moisture range, required by tobacco transplanting, are combined, and the spatial distribution of the suitable transplanting period of the tobacco-growing area can be determined. The method is simple, can be used conveniently, and can solve the problems that the traditional data based on sparse meteorological stations and less soil sampling points cannot reflect the spatial distribution of the meteorology and the soil moisture of the complicated hilly area easily, and the suitable transplanting period of the different areas of the complicated hilly area cannot be accurately determined.