Should be cauliflower virus disease, prevention first. First of all, we must prevent and control aphids and planthoppers and control the source of infection. Morphine hydrochloride, ribavirin, morpholine, oxymatrine, calcium-sulfur mixture, lentinan, ningnanmycin, Bingzhiling, etc. can be used. Adding zinc and amino acid foliar fertilizer, imidacloprid and boron fertilizer for spraying. Spray continuously for 2-3 times every 5 days.