Аннотация:The study investigates the possibility of remote analysis of soil fertility of grape agrocenoses based on spectral analysis of an image obtained using a high-resolution camera, as well as the creation of a mobile portable complex for remote monitoring of soil condition. A software based on the fast Fourier transform. which made it possible to divide the most informative red color range into several sub-bands, was developed. The obtained regression ratio, which expresses the dependence of the humus content in the soil on the brightness in the red sub-bands, allows to remotely evaluate the humus content in the soils of the southern regions of Russia with high accuracy, no worse than 5-7%.