An autonomous emergency braking apparatus may include: a front sensor configured to sense object information by searching for a control target ahead of a vehicle; a compensation condition sensor configured to sense a vehicle state and a surrounding environment, in order to estimate the road state and the driving environment of the vehicle; a brake controller configured to generate a braking force to brake the vehicle; a warning controller configured to notify an operation state when the vehicle is braked; and a controller configured to calculate a braking force and braking point, adjust the road state estimated from the vehicle state sensed through the compensation condition sensor and the braking force and the braking point which are calculated according to the surrounding environment, output a braking command to the brake, and notify the operation state through the warning controller according to the braking command.