To provide a novel method for producing a 2-azaadamantane compound from a bicyclocarbamate compound.In accordance with the following scheme: a bicyclocarbamate compound represented by the formula (1) is reacted with a halogenating agent to produce a 2-azaadamantane carbamate compound represented by the formula (2), and the 2-azaadamantane carbamate compound is subjected to hydrogenolysis to produce a 2-azaadamantane compound represented by the formula (3) (in the formulae, R1 is hydrogen or the like, each of R2 and R3 which are independent of each other, is a hydrogen atom or a C1-6 alkyl group, Ar is an aryl group which may be substituted by Ra, Ra is halogen or the like, X is a halogen atom, and Y is X or a hydrogen atom).