According to one embodiment, an assist control apparatus includes a driving mechanism, an acquisition unit, an estimation unit and a drive unit. The driving mechanism is attached to a leg of a user. The acquisition unit is configured to acquire a status signal indicating a motion of an arm of the user. The estimation unit is configured to determine an assistance timing which is a timing for assisting an action of the user based on changes in the status signal. The drive unit is configured to drive the driving mechanism to generate an assistance power to assist the action of the user in accordance with the assistance timing.
