There is considered the issue of the major role of the central and territorial organs of the PCIA in organization and establishment of the guerrilla movement by the example of the situation in the Yaroslavl region in the course of the German attack on Moscow in the autumn 1941. The real threat of the enemy occupation of the Yaroslavl region territory made the PCIA organs create secret services, diversion groups and guerrilla groups. There is considered the process of organization of the material supply of the future guerrilla groups and diversion groups. Based on the FSS archival materials of the Yaroslavl region there s given the information about the man power of the guerrilla groups and diversion groups.