The present invention relates to a use method of a clay-containing duck feed. The main method comprises that: young ducks are fed 5-6 times each day when achieving 1-3 week-old, are fed 2-3 times each day when achieving 4-5 week-old, and are fed 1-2 times when achieving 5-6 week-old; sufficient drinking water is supplied and disinfection is performed regularly during the feed preparing and duck taking process; other auxiliary feeds with excessive calcium content are not used; the disease prevention and treatment at the peak period is focused, prevention administration can be appropriately performed, and the feeding number of the clay feed can be appropriately reduced each day when plague or flu occurs; and during the feed reducing process, if the egg production or the body weight is significantly changed, the feeding amount is recovered and then the cause is checked. According to the present invention, the clay is used and is added to the special feed capable of being directly used by the young ducks, such that the young ducks can sufficiently absorb trace elements in the natural health state so as to improve the yield and the quality of the young ducks.