It is generally recommended that breeding be carried out 9-11 days after the golden hair is in heat, which is more appropriate, and should be done at least twice, with an interval of about 1-2 days between each time, in order to improve the success rate. In the early stage of estrus, the female golden hair will refuse the male dog to climb on her. It is not until 9-11 days that the amount of redness is the largest. The vagina of the female dog will be red, swollen and abnormal, which is also the peak of egg secretion. When breeding, it is recommended to choose a quiet place without interference. If the weather is relatively cold, it is best to breed at noon, and it is best to fast before breeding.