NOVELTY - Collection and utilization system of forest biomass, comprises a pipe line (2) for pneumatically transporting the crushed pieces of forest biomass, which is arranged at exterior area of forest and has an emitting orifice (11) equipped with a biomass crushing apparatus (1) inside the forest and inlet ports (21,21'). A connecting pipe (3) is arranged between the emitting orifice and pipeline.    USE - For transporting the forest biomass such as tree accumulated as log material in forest.    ADVANTAGE - The forest biomass is efficiently collected and effectively utilized by the system. Global warming due to carbon dioxide generation when combusting fossil fuel is suppressed, by utilizing biomass.    DETAILED DESCRIPTION - Biomass crushing apparatus (1) has a crusher for forest biomass and emitting orifice for ejecting the crushed pieces. The emitting orifice and the inflow ports (21,21') which is inside the forest, are arranged in the pipeline. The biomass crushing apparatus comprises an air blower (8) for supplying air to convey the crushed pieces. An air blower (4) for suction which sucks the air used to convey crushed pieces, is held on the side of outlet port of pipe line. A biomass converter (5) converts the crushed pieces of forest biomass into heat energy, combustible gas, liquid fuel, charcoal or compost by combustion, thermal decomposition, gasification or any one of the fermentation method. A crushing piece sorting apparatus is provided ahead of the biomass converter. An insertion opening is provided to the pipeline for ejecting the waste converted solid substance produced by biomass converter and/or sorting apparatus to the inside of a forest, using the air supplied by an air blower.    DESCRIPTION OF DRAWING(S) - The figure shows the process diagram of cargo collection and utilization system of forest biomass. (Drawing includes non-English language text).    Biomass crushing apparatus (1)    Pipeline (2)    Connecting pipe (3)    Air blower (4,8)    Biomass converter(11) Emitting orifice (5)    Inlet ports (21,21')    Outflow port (22)