Disclosed is an arthropod pest control composition having an excellent controlling effect on arthropod pests, which comprises an amide compound represented by formula (a):a spinosin compound represented by formula (1):wherein R1 represents a hydrogen atom or a C1-C4 alkyl group, R2 represents a C1-C4 alkyl group, and X1 and X2 each represents a hydrogen atom, or X1 and X2 are taken together to form a single bond, andone or more compounds selected from Group (A):Group (A): the group consisting of fipronil, pymetrozine, a compound represented by formula (b):and a neonicotinoid compound containing a nitroguanidine structure.
