Agriculture?is?a?fundamental?element?to?develop?economy?and?keep?social?stability?in?our?nation.?The?important?areas of?food security?are?showed?by?four?aspects-the?quantity?of?farmlands,?the?quality?of?farmlands,the?quantity?of?food and?the?quality?of?food.Thus,?ecological?agriculture?is?a?trend?to?insure?food?security.?There?are?several?fields?should?be?considered.?Firstly?of?all,?the?opportunity?of?practicing?green?agricultural?strategy?may?be?created.The?second?aspect?is?the?development?of?circular economy Bio-agriculture.?The?next?one?is?to?improve?the?quality?of?agricultural?products?technically.?Finally,?to?establish?the?information?management?system?of?the?food?quality?and safety is?also?important.