The invention provides an external parasite prevention and control agent for animals. The external parasite prevention and control agent comprises the following components in percentage by
mass: 6-12% of
fipronil; 1 to 5% of
moxidectin; 1-3% of
pyriproxyfen; 1-3% of a
crystallization inhibitor; 0.3%-0.6% of an
antioxidant; 3-5% of a main
solvent; the total percentage is 100%. The
fipronil is taken as a main effective component, and
moxidectin and
pyriproxyfen are cooperatively matched, so that the
fipronil-containing insecticidal composition has a good insecticidal effect, and the problems that an existing insecticide is poor in insecticidal effect and cannot thoroughly kill ticks, mites and the like are solved; particularly, the animal external
parasite control agent comprises 10% of fipronil, 1% of
moxidectin, 1.8% of
pyriproxyfen, 2% of
propylene glycol, 0.1% of BHT, 0.2% of BHA, 3% of absolute ethyl
alcohol, 2% of
dimethyl sulfoxide and a proper amount of
diethylene glycol monoethyl
ether, and the insecticidal effect is particularly good.