The invention discloses a breeding method for boars of miniature pigs. Healthy miniature piglets which are just born are selected to be fed, an ecological captivity method is adopted, the scatter-feed environment is mainly used, a hog house is used in an auxiliary manner, green feed, energy feed and an auxiliary material which are of different proportions are matched according to the boars, of different ages of days, of the miniature pigs, the feed is abundant in nutrition, the miniature pigs are driven to exercise once at 10 o'clock every morning and are driven to exercise once at 5 o'clock every afternoon, and the exercise time should be kept being 1 h to 2 h. By means of the breeding method, the whole breeding process of the miniature pigs is optimized on the aspects of hog house construction, feed ratios, daily feeding and disease prevention and treatment of breeding, and the breeding environment of the boars of the miniature pigs is overall improved; and by means of the ratios of the feed, for the growth and reproduction characteristics of the miniature pigs, the stress resistance and the disease resistance of the boars of the miniature pigs are improved, and therefore stomachs and intestines are regulated, the anti-stress capacity is increased, the health of the boars of the miniature pigs is improved, the boars are prevented from being fatigue, and the boars, in good health, of the miniature pigs can breed good-quality miniature piglets.