NOVELTY - The apparatus has a tank (2) with an enclosed space (2a) for storing organic liquid (6). A catalyst support substrate (4) is arranged in a position exposing the supported catalyst to the space without direct contact with the liquid. An inert gas supply apparatus (7) supplies inert gas to space, at the time of evaporation of liquid by heating of substrate. The enclosed space in tank is formed as reaction space and connection section between liquid and tank is formed so that surface enclosed by tank wall is formed as a boundary portion (8) of reaction space and liquid.    USE - Apparatus for manufacturing nanocarbon materials. Uses include but are not limited to utilization in nano pincette, scanning microscope probe, nano wiring, nano test tube in nanotechnology field, application in FET, field emission type electron source, transparent electrode in electronic fields, gas sensor, lithium cell, solar cell, flat panel display in environment and energy fields and in application of nano capsule, syringe needle in medical field.    ADVANTAGE - Amount of organic liquids required for synthesis reaction is ensured by making the enclosed space of tank into reaction space and forming boundary of reaction space and liquid. The inside of reaction space can be reliably maintained to high concentration carbon source gas atmosphere. Thus, a simple, small and low cost apparatus is provided for producing high quality nanocarbon materials efficiently.    DETAILED DESCRIPTION - The tank is immersed in a bath accommodating the organic liquid. The tank consists of an inversion case which inverts the lower surface opening through a support mechanism with respect to the organic liquid in the bath. A control unit stops the supply of inert gas during synthesis of nanocarbon materials by heating of catalyst support substrate in the organic liquid with the evaporative emission of organic liquid. An INDEPENDENT CLAIM is included for manufacturing method of nanocarbon materials.    DESCRIPTION OF DRAWING(S) - The drawing shows a longitudinal cross sectional view of the manufacturing apparatus of nanocarbon materials.    Tank (2)    Enclosed space (2a)    Catalyst support substrate (4)    Organic liquid (6)    Inert gas supply apparatus (7)    Boundary portion (8)