PURPOSE: A manufacturing apparatus of continuous carbon nano-tubes and a manufacturing method of the same are provided to reduce the consumption of introducing gas such as carbon sources, hydrogen, and nitrogen. CONSTITUTION: A manufacturing method of continuous carbon nano-tubes includes the following: carbon nano-tubes are generated by reacting a catalyst and reactive gas containing carbon sources, reduction gas, and inert gas; the generated carbon nano-tubes are separated from mixed gas; the separated mixed gas is filtered to remove a part or whole of the reduction gas; and the filtered mixed gas is re-circulated to the carbon nano-tube generating process. [Reference numerals] (AA) Re-circulation hydrogen gas(if necessary); (BB) Hydrogen storage; (CC) Exhaust gas treatment; (DD) Heat exchanger; (EE) Gas analyzer; (FF) Carbon source and nitrogen gas recirculation; (GG) Catalyst; (HH) Hopper; (II) Hydrogen PSA unit; (JJ) FBA or fixed bed reactor; (KK) Filter; (LL) Cyclone; (MM) CNT collector; (NN) Reaction gas supply; (OO) Pre-heater