The invention discloses functional goose with high content of PUFA, EPA and DHA and low content of n-6 PUFA/n-3 PUFA and a production method of the functional goose. The production method of the functional goose adopts meat gooses fed by a feeding method to produce the functional goose. The feeding method comprises the following step: feeding the meat gooses in a whole fattening period by adopting a seal oil daily ration, wherein the seal oil daily ration is composed of a common feed for the fattening period of the meat gooses and seal oil, the mass of the seal oil in the seal oil daily ration accounts for 0.5%-1.5% of the mass of the common feed for the fattening period of the meat gooses; and the common feed for the fattening period of the meat gooses does not contain the seal oil. Aiming at the characteristics that the content of the PUFA in the goose is low and the ratio is imbalanced, the composition of fatty acids of the meat goose daily ration is improved by taking the seal oil as an additive according to principles and technologies of animal physiology and animal nutrition, and the enriching degree of the PUFA in the goose is improved, so that the functional goose with the high content of PUFA, EPA and DHA and the low ratios of n-6/n-3 PUFA is produced.