The invention relates to an immunization method for layer chickens. According to the method,
inoculation is conducted by day age as follows: MD and medivac ND-IB live vaccine at 1 day old, coccidium vaccine at 4 days old,
fowl pox vaccine at 5 days old, ND-IB vaccine at 8 days old, bursa fabricius live vaccine at 10 days old,
bird flu vaccine at 12 days old, Newcastle-
disease inactivated vaccine and ND-IB vaccine at 15 days old, bursa fabricius live vaccine at 20 days old, ILT vaccine at 28 days old, first-series clone vaccine at 35 days old,
bird flu vaccine at 42 days old, IC vaccine at 56 days old,
bird flu vaccine at 80 days old, first-series clone vaccine at 85 days old, ILT vaccine at 90 days old, IC vaccine at 100 days old, Newcastle-
disease attenuated vaccine at 115 days old, birdflu vaccine at 120 days old, first-series clone vaccine at 40 weeks old and bird flu vaccine at 45 weeks old. According to the immunization method for the layer chickens, the diseases of the layer chickens are effectively controlled, the death rate of the layer chickens is reduced, and the health of the layer chickens is guaranteed.