This invention is related to an axial flow seed thresher comprising: (a) a feeding hoper (26) provided with a fixed comb (27), a feeding anger (28), two grooved two step pulleys (29), a bearing housing (30), N-belt (31), a feeding shaft (32), two V- grooved pulley (33), two V-grooved two-step pulley (34), two V-grooved two step pulley (35) and a main shaft (36) (b) a threshing assembly (5) comprising a threshing cylinder (44) and concave (47). (c) a separating unit (42) comprising a separator cylinder, (d) a straw throwing unit (41) comprising of at least four number of throwers, (e) a belt conveyer (49), (f) an aspirator (6) having four number of blades, (g) a blower (7) having four fins equipped on a flywheel (55) (h) a rear blower (63) (i) a metallic frame (23) and (j) a transmission on system.