Disclosed is a cyclic amine compound represented by formula (I) or the like or a salt thereof. Further disclosed is a miticide containing the same. In formula (I), Cy1 and Cy2 each independently represent a C6-10 aryl group or a heterocyclyl group； R1a to R5a each independently represent a hydrogen atom or an unsubstituted or substituted C1-6 alkyl group； R10, R11, R20, and R21 each independently represent an unsubstituted or substituted C1-6 alkyl group, an unsubstituted or substituted C1-6 alkoxy group, a halogen atom, or the like； m, n, p, and r each represent an integer of 0 to 5； and Y represents an oxygen atom or the like.
