The invention relates to a classified recovery method for tar in carbon hydrogen powder fluidized bed pyrolysis gas. The high temperature near-all gas phase low oil gas partial pressure conditions ofgas in a pyrolysis process AR10 are utilized to obtain light distillate oil SLD mainly composed of hydrocarbon with NBP lower than 470DEG C, heavy distillate oil SLHD mainly composed of hydrocarbon with NBP at 450-600DEG C and overweight pitch SHVD mainly composed of hydrocarbon with NBP higher than 600DEG C in a condensation separation process; the SLD can be converted into hydrogen-donating hydrocarbon by a hydrogenation process R20U, and the hydrogen-donating hydrocarbon and SLHD as well as possible coal powder are used as the feed of an expanded bed hydrogenation reaction process R30U so as to maximumly improve the hydrogenated light oil product yield of pyrolytic tar. The fluidized bed pyrolysis process ZR10 or ZR10 product recovery process of SHVD can be combined with the AR10 or AR10 product recovery process. And medium-low temperature tar or coal tar pitch thereof can be processed jointly to realize separation of heavy distillate oil and overweight pitch.