In　this　paper,　the　effect　of　reinforcement　on　the　concrete　self-induced　stress　before　the　concrete　crack　is　analyzed.　Based　on　a　uniaxial　restraint　model,　the　effect　of　reinforcement　on　the　concrete　self-induced　stress　is　investigated　by　taking　into　consideration　such　factors,　as　concrete　shrinkage,　concrete　creep　and　thermal　expansion,　respectively.　A　numerical　analysis　on　the　self-induced　stress　of　massive　RC　structures　is　then　conducted　using　a　finite　element　method.　The　effect　of　reinforcement　on　the　concrete　self-induced　stress　under　the　coupling　effect　of　concrete　shrinkage,　creep　and　thermal　expansion　is　studied.　It　is　found　that　the　external　restraint　plays　an　important　role　on　evaluation　of　the　effect　of　reinforcement　on　the　concrete　self-induced　stress.　A　simplified　relationship　between　the　external　restraint　and　the　reinforcement　influence　coefficient　is　developed.　The　elastic　and　viscoelastic　approach　give　a　consistent　description　of　the　effect　of　reinforcement　on　concrete　self-induced　stress.