Using　an　individual-level　dataset　drawn　from　the　China　Health　and　Nutrition　Survey　in　2000,　2004,　2006,　and　2009,　this　paper　investigated　whether　the　parental　labour　migration　is　associated　with　deficiencies　in　the　nutrition　intakes　of　children　left　at　home　in　the　rural　area.　The　results　show　that　the　parental　migration　increases　the　probability　of　deficiency　in　the　energy　and　protein　intake　of　children　left　at　home.　Although　several　studies　have　pointed　out　that　the　parental　remittances　can　increase　the　economic　well-being　of　their　children　at　home,　this　study　points　to　an　undesired　cost　of　the　parental　migration.　Governments　should　establish　effective　policies　to　promote　the　benefits　of　migration　while　minimizing　the　potential　costs.　In　particular,　specific　social　welfare　programs　targeting　on　children　in　the　rural　area　can　be　designed　to　insecure　the　nutritional　health　of　children　left　at　home　in　the　rural　area.