The present invention provides a fungicide composition for agricultural and horticultural use, comprising compound A represented by formula (1) (in formula (1), Xs each independently represents a halogeno group or a C1-6 alkyl group; n represents a number of Xs and is an integer of 0 to 5; X' represents a halogeno group; R 1 , R 2 and R 3 each independently represents a C1-6 alkyl group, a C1-6 alkoxy group or a hydroxyl group; A 1 and A 2 each independently represents a nitrogen atom or a carbon atom), and at least one compound B selected from the group consisting of pydiflumetofen, pyraziflumid, isofetamid, tolprocarb, fluxametamide, broflanilide, tiadinil, fenoxanil and triflumezopyrim.