Research results on blackhead disease caused by H. meleagridis show that many chickens raised in Thai Nguyen province have blackhead disease. Chicken raising households need to synchronously implement measures to prevent diseases for chickens in general and to prevent blackhead disease for chickens in particular: perform good cleaning of cages, food, farming tools, and use preventive vaccines. diseases for chickens according to the correct farming process, periodically deworming and flukes to prevent parasitic diseases for chickens, strengthening care and nurturing to improve the resistance of chickens. The article presents about Research on black head disease caused by H. meleagridis in chickens in Thai Nguyen to serve the student training program at Lao Cai College.