Reversible plow comprising, on the one hand, a frame carrying plowbodies (3, 3') and equipped with at least one wheel (8, 8') and, on the other hand, a coupling head with a support arm and a three-point hitching device (5, 5', 5") for coupling it to a tractor vehicle, the frame comprising two groups of plowbodies (3, 3'), arranged on either side for right-hand or left-hand plowing respectively in relation to the direction of advance, and being connected to the support arm by a pivot connection defining a reversing axis for reversible switching from one working configuration to the other, by pivoting approximately half a turn, preferably under the effect of an actuator, the said plow also being transposable, by rotating the frame by approximately a quarter turn around the reversing axis, from one of the working configurations, to the transport configuration in which the upper hitching point is movable in relation to the support arm and in which the plow can be towed by traction at the two lower hitching points (5', 5") and rolling, supported by the said at least one wheel, the said plow also comprising a first means for locking in position the upper hitching point in relation to the support arm and a second means for locking in rotation the pivot connection, and therefore the rotation of the frame, with locking means are engaged or disengaged depending on whether the plow is in one of the working configurations or in the transport configuration, plow characterized in that it further comprises a device for common control of the engaged/disengaged state of the said first and second locking means (9 and 10), this device being configured so as to define a sequence of operations for actuating or releasing the said first and second locking means (9 and 10) respectively towards their engaged state or their disengaged state according to the desired configuration of the plow. the frame comprising two groups of plowbodies (3, 3'), arranged on either side for right-hand or left-hand plowing respectively in relation to the direction of advance, and being connected to the support arm by a pivot connection defining a reversing axis for reversible switching from one working configuration to the other, by pivoting approximately half a turn, preferably under the effect of an actuator, the said plow also being transposable, by rotating the frame by approximately a quarter turn around the reversing axis, from one of the working configurations, to the transport configuration in which the upper hitching point is movable in relation to the support arm and in which the plow can be towed by traction at the two lower hitching points (5', 5") and rolling, supported by the said at least one wheel, the said plow also comprising a first means for locking in position the upper hitching point in relation to the support arm and a second means for locking in rotation the pivot connection, and therefore the rotation of the frame, with locking means are engaged or disengaged depending on whether the plow is in one of the working configurations or in the transport configuration, plow characterized in that it further comprises a device for common control of the engaged/disengaged state of the said first and second locking means (9 and 10), this device being configured so as to define a sequence of operations for actuating or releasing the said first and second locking means (9 and 10) respectively towards their engaged state or their disengaged state according to the desired configuration of the plow.