The invention provides a method for remotely monitoring the content of organic matters in gray desert soil in the northern Xinjiang. The method comprises the following steps: selecting Landset8 OLI data of soil in the bar soil period, performing radiation correction and atmosphere correction on the data to obtain a bare soil spectral reflectance value; respectively calculating spectral reflectance values of soil with different organic matter contents to obtain spectral reflectance parameters sensitive to grey desert soil organic matters in visible light and near-infrared band ranges; and inversing the parameters to obtain a soil organic matter spatial layout. The method is used for quickly monitoring the content of organic matters in gray desert soil in the northern Xinjiang in a large scale by utilizing a novel satellite spectral data, and has a monitoring accuracy of over 70 percent, so that the accuracy of satellite data for remotely monitoring gray desert soil organic matters in a large-scale can be remarkably improved, and the requirement of northern Xinjiang for monitoring the content of organic matters in farmland soil can be met.