An apparatus for controlling an opening/closing body for automatically opening/closing the opening/closing body, the apparatus comprising: a latch for drawing in and releasing a striker; a displacement body for operating said latch via a latch operating mechanism, said displacement body being movable and displaced between movable regions including a latch closing region for drawing in said latch, a latch releasing region for releasing said latch and a neutral region located between said latch closing region and said latch releasing region; a first detecting section configured to output a first detection signal in response to passage of the displacement body through a first boundary portion of the neutral region on the side of the closing region; a second detecting section configured to output a second detection signal in response to passage of the displacement body through a second boundary portion of the neutral region on the side of the releasing region; characterized in that the apparatus further comprises a control unit for effecting braking control for reducing the moving speed of the opening/closing body if neither the first detection signal nor the second detection signal are detected within a predetermined period after starting of a neutral returning movement which is effected after the latch closing movement of the opening/closing body for returning said displacement body from said latch closing region to said neutral region; or said control unit effecting braking control for starting a latch closing movement and reducing the moving speed of the opening/closing body if a drawing-in condition for said striker by said latch is established when neither the first detection signal nor the second detection signal are detected within a predetermined period after starting of a neutral returning movement which is effected after the latch closing movement of the opening/closing body for returning said displacement body from said releasing region to said neutral region. a latch for drawing in and releasing a striker; a displacement body for operating said latch via a latch operating mechanism, said displacement body being movable and displaced between movable regions including a latch closing region for drawing in said latch, a latch releasing region for releasing said latch and a neutral region located between said latch closing region and said latch releasing region; a first detecting section configured to output a first detection signal in response to passage of the displacement body through a first boundary portion of the neutral region on the side of the closing region; a second detecting section configured to output a second detection signal in response to passage of the displacement body through a second boundary portion of the neutral region on the side of the releasing region; characterized in that the apparatus further comprises a control unit for effecting braking control for reducing the moving speed of the opening/closing body if neither the first detection signal nor the second detection signal are detected within a predetermined period after starting of a neutral returning movement which is effected after the latch closing movement of the opening/closing body for returning said displacement body from said latch closing region to said neutral region; or said control unit effecting braking control for starting a latch closing movement and reducing the moving speed of the opening/closing body if a drawing-in condition for said striker by said latch is established when neither the first detection signal nor the second detection signal are detected within a predetermined period after starting of a neutral returning movement which is effected after the latch closing movement of the opening/closing body for returning said displacement body from said releasing region to said neutral region.