The　fracture　parameters　and　fatigue　performances　of　carbon　fiber　reinforced　concrete　is　investigated　by　three　point　bending　tests.　In　comparison　with　the　results　of　quasi-static　tests　where　no　pre-cyclic　loading　is　applied,　the　influence　of　pre-cyclic　loading　history　on　fracture　parameters　was　researched　by　using　compliance　calibration.　The　test　results　show　that　the　fracture　parameters　of　carbon　fiber　reinforced　concrete　and　plain　concrete　will　be　reduced　if　the　pre-cyclic　loading　stress　levels　are　higher　than　a　certain　threshold,　and　this　threshold　value　for　carbon　fiber　reinforced　concrete　is　higher　than　that　of　plain　concrete.　The　critical　effective　crack　length　for　carbon　fiber　reinforced　concrete　is　significantly　larger　than　that　of　plain　concrete　and　independent　of　the　pre-cyclic　loading　history　and　fatigue　life.　Carbon　fiber　reinforced　concrete　has　a　considerable　beneficial　effect　on　the　behaviour　of　concrete　subjected　to　flexure　fatigue　loading.　(C)　2004　Elsevier　Ltd.　All　rights　reserved.