The invention discloses forage for sow large-scale culture and culture method thereof. The forage is divided into two phases, namely forage for pregnancy period and forage for lactation period, wherein, forage for pregnancy period includes following weight percentage of components: 50-60 of corn, 15-25 of concentrated material A, and 20-30 wheat bran; forage for lactation period includes following weight percentage of components: 60-70 of corn and 30-40 of concentrated material B. On the basis of excellent quality, the forage of the present invention improves energy, balances nutrition, realizes maximization of formula value, satisfies sow production need, increases economic benefit of sow breeding, and promotes culture mode to develop to large-scale and intensivism.