ELECTRIC CONNECTION BOX

To provide an electric connection box that enables increased workability upon removing a cover.SOLUTION: An electric connection box 1 includes a box main body 2 having a cylindrical side wall 20 and a locking part 50 disposed on an outer surface of the side wall, and a cover 3 to be engaged with the side wall, the side wall has a first wall part 21 and a second wall part 22 opposite to the first wall part, the locking part has a first locking part 51 disposed on the first wall part and a second locking part 52 disposed on the second wall part, the cover 3 has a first opposite wall 31 opposite to the first wall, a first locking piece 61 disposed on an outer surface of the first opposite wall, a second opposite wall 32 opposite to the second wall part, and a second locking piece 62 disposed on an outer surface of the second opposite wall, the first opposite wall has a first opposite part 31a, a second opposite part 31b, and a connection part 31c to connect the first opposite part and the second opposite part, the second opposite part is located closer to the second opposite wall than the first opposite part, and the first locking piece is located at an edge portion of the first opposite part closer to the second opposite part.SELECTED DRAWING: Figure 2 【課題】カバーを取り外す際の作業性を向上させることができる電気接続箱を提供する。【解決手段】電気接続箱１は、筒状の側壁２０と、側壁の外面に配置された係止部５０と、を有する箱本体２と、側壁に嵌合するカバー３と、を備え、側壁は、第一壁部２１と、第一壁部と対向する第二壁部２２と、を有し、係止部は、第一壁部に配置された第一係止部５１、および第二壁部に配置された第二係止部５２を有し、カバー３は、第一壁部と対向する第一対向壁３１と、第一対向壁の外面に配置された第一ロック片６１と、第二壁部と対向する第二対向壁３２と、第二対向壁の外面に配置された第二ロック片６２と、を有し、第一対向壁は、第一対向部３１ａと、第二対向部３１ｂと、第一対向部と第二対向部とをつなぐ繋ぎ部３１ｃと、を有し、第二対向部は、第一対向部よりも第二対向壁の側に位置し、第一ロック片は、第一対向部における第二対向部に近い端部に位置している。【選択図】図２