The present invention provides a cyclic amine compound represented by formula (I) (in formula (I), each Cy1and Cy2independently represents C6-10 aryl group or a heterocyclyl group； each R1a-R5aindependently represents hydrogen atom or an optionally substituted C1-6 alkyl group； each R10, R11, R20and R21independently represents an optionally substituted C1-6 alkyl group, an optionally substituted C1-6 alkoxy group, a halogen atom or the like； each m, n, p and r represent any integer of 0-5； Y represents oxygen atom or the like.) or salt thereof, and a miticide containing the cyclic amine compound or salt thereof.本發明提供一種式(I)[式(I)中，Cy1及Cy2分別獨立地表示C6～10芳基、或雜環基。R1a～R5a分別獨立地表示氫原子、或者未經取代或具有取代基之C1～6烷基，R10、R11、R20、及R21分別獨立地表示未經取代或具有取代基之C1～6烷基、未經取代或具有取代基之C1～6烷氧基、鹵素原子等。m、n、p、r分別為0～5之任一整數。Y表示氧原子等。]等所示之環胺化合物或其鹽、及含有其之殺蟎劑。
