A lever connector includes a housing, and a lever rotatably provided on the housing to be rotated in a locking direction to be disposed at a connection locking position. The lever includes support plate portions rotatably supported by both sides of the housing, the housing has a hump portion protruding in a direction intersecting with a rotating direction of the lever, the lever has a protrusion portion protruding in an opposite direction to the hump portion to be engaged with the hump portion, the hump portion has a tapered surface inclined in a protruding direction of the protrusion portion as extending in the locking direction from a top of the hump portion, and as the protrusion portion is slid along the tapered surface to be engaged with the tapered surface, the lever is applied with a rotating force in the locking direction.