NOVELTY - The process for treating the organic waste e.g. pre-composed green waste, comprises introducing a litter of organic matter having worms to a first module having superimposed framework (1), successively adding pre-composed organic matters in the superimposed framework, controlling a temperature (20-30degrees ) and a degree of humidity (70-90%) of the decomposition matter in the framework by adding a liquid to the organic matter, installing a transfer element (3) having a movable bottom (4) at a top of two adjacent modules, and introducing the organic matter to the transfer element bottom.    USE - The process is useful for treating the organic waste e.g. pre-composed green waste (claimed).    ADVANTAGE - The process ensures simple and fast treatment of the green waste, allows a reduction of about two-third of the volume of organic matter after the initial treatment, and provides a high yield of the final product with improved quality.    DETAILED DESCRIPTION - The process for treating the organic waste e.g. pre-composed green waste, comprises introducing a litter of organic matter having worms to a first module having superimposed framework (1), successively adding pre-composed organic matters in the superimposed framework, controlling a temperature (20-30degrees ) and a degree of humidity (70-90%) of the decomposition matter in the framework by adding a liquid to the organic matter, installing a transfer element (3) having a movable bottom (4) at a top of two adjacent modules, and introducing the organic matter to the transfer element bottom, and transferring the worm to the second module by folding. The worm belongs to a species of Eisenia foetida andrei. The litter comprises 80 worms per kilo of organic matter. An INDEPENDENT CLAIM is included for device for treating the organic waste.    DESCRIPTION OF DRAWING(S) - The figure shows a perspective view of two modules of the treatment device.    Superimposed framework (1)    Support (2)    Transfer element (3)    Bottom (4)    Slide. (7)