In the title compound, C(14)H(19)N(3)S, the cyclo-hexane ring has a chair conformation. The almost planar amino-thio-urea unit (r.m.s. deviation = 0.0062 Å) is aligned at a dihedral angle of 45.23 (8)° with respect to the benzene ring. Inter-molecular N-H⋯N and N-H⋯S hydrogen bonding stabilizes the crystal structure.