The invention relates to an organic waste gas adsorbing device. The organic waste gas adsorbing device comprises a gas inlet system (1), an adsorbing module (2) and a gas discharging system (3); a gas flow unit (4) communicated with the gas inlet system (1) is arranged below the adsorbing module (2); a flow dividing unit (5) is arranged between the gas flow unit (4) and the adsorbing module (2). The organic waste gas adsorbing device can effectively improve the adsorbing efficiency of an adsorbing unit in the adsorbing module, avoids the too early penetration phenomenon caused by non-uniform adsorption is avoided, and avoids damage to a bed layer caused by the fact that the gas flow directly blows a carbon bed of the adsorbing unit in the traditional gas inlet mode.