The　shrinkage　distortion　of　engineering　cementitious　composites　(ECC),　the　behavior　for　adhesion　of　ECC　on　existing　concrete,　and　the　durability　properties　of　ECC　under　freezing　and　thawing　cycles　are　experimentally　researched.　The　effects　of　fiber　variety　and　reduction　additive　on　shrinkage　distortion　of　ECC　are　analyzed.　The　behavior　for　adhesion　of　ECC　on　existing　concrete　and　the　effects　of　domestic　and　imported　fibers　on　durability　properties　of　ECC　under　freezing　and　thawing　cycles　are　discussed.　The　results　show　that　domestic　PVA　fibers　can　effectively　control　the　early　stage　shrinkage　distortion　of　ECC,　while　Japan　PVA　fibers　of　high　Young＇s　modulus　can　effectively　control　the　final　stage　shrinkage　distortion　of　ECC.　The　shrinkage　strain　probably　reduces　2　×　10-4　with　the　addition　of　reduction　additive,　and　reduction　additive　can　also　effectively　control　the　shrinkage　distortion　of　ECC　when　W/C　is　0.40.　The　behavior　of　adhesion　of　ECC　on　existing　concrete　is　much　better　than　that　of　self-compacting　concrete　and　plain　concrete.　ECC　is　a　perfect　material　for　retrofitting　deck　and　pavement,　strengthening　reservoir　and　dam.　The　frost　resistance　grade　of　ECC　is　higher　than　F300,　so　ECC　can　repair　and　strengthen　concrete　structures　in　cold　regions.