This　study　aimed　to　optimise　the　layout　of　pig　breeding　in　the　south　water　network　area　and　guide　the　transfer　of　pig　production　capacity　to　the　areas　with　large　environmental　capacity　and　the　main　maize-producing　areas.　Combining　with　the　alarm　value　of　equivalent　pig　manure　load　on　cultivated　land,　the　comprehensive　advantage　index　of　maize　and　GIS　(Geographic　Information　System),　this　study　analysed　the　spatial　layout　planning　of　the　pig　northward　movement　in　China.　Results　showed　that　the　alarm　value　of　equivalent　pig　manure　load　on　cultivated　land　in　other　parts　of　the　study　area　exceeded　0.40,　except　in　Jilin,　Heilongjiang　and　the　Inner　Mongolia　Autonomous　Region.　The　highest　alarm　value　of　equivalent　pig　manure　load　on　cultivated　land　value　of　1.96　was　observed　in　Fujian　Province,　followed　by　Jiangxi　(1.09)　and　Hubei　(0.42).　A　total　of　573.996　million　excess　pig　equivalents　were　present　in　the　study　area.　In　the　provinces　with　potential　pig　equivalent,　Jilin,　Heilongjiang　and　the　Inner　Mongolia　Autonomous　Region　can　carry　the　potential　pig　equivalent　of　306.270　million.　The　priority　target　areas　of　the　pig　northward　movement　were　Jilin,　Heilongjiang　and　the　Inner　Mongolia　Autonomous　Region　according　to　the　comprehensive　advantage　index　of　maize.　Combining　with　the　spatial　analysis　method　of　GIS,　the　scheme　of　the　pig　northward　movement　was　obtained.　According　to　the　spatial　layout　planning　of　the　pig　northward　movement,　Jilin　and　Heilongjiang　carried　15.339　and　135.36　million　pig　equivalents,　respectively,　thereby　reaching　the　maximum　number　of　pig　equivalents　they　can　carry,　whereas　the　Inner　Mongolia　Autonomous　Region　can　carry　80.086　million　pig　equivalents.　The　results　can　provide　a　scientific　basis　for　the　spatial　layout　planning　of　pig　breeding　and　environmental　pollution　protection　in　China.