The object is to provide a process whereby it is possible to produce 2,3,3,3-tetrafluoropropene at a high conversion ratio constantly for a long period of time.A process for producing 2,3,3,3-tetrafluoropropene, which comprises reacting a raw material compound of at least one of 1,1-dichloro-2,3,3,3-tetrafluoropropene and 1-chloro-2,3,3,3-tetrafluoropropene, and hydrogen, in the presence of a noble metal catalyst supported on active carbon having an ash content of at most 3% as measured in accordance with ASTM D2866.