To restrain the enlargement of a brake distance by selecting a brake control mode corresponding to a present drive method when an actual vehicular drive method is different from the control mode of an antiskid control.

A counter means 34 for detecting the number of positive/ negative reverse rotation of the rotation speed difference between front/rear drive shafts 22, 23 in the prescribed time under antiskid control is provided near a transfer 24. For example, when the count number of a count means 34 is a prescribed number of times or more, regardless of that the detection contents of a drive method detection means 28 is a drive mode, the antiskid control mode for 4 wheels drive is set as a control mode. When the count number of the count means 34 is less than the prescribed number of times, regardless of that the detection contents of the drive method detection means 28 is 4 wheels drive mode, the antiskid control mode for 2 wheels drive is set as the control mode. Therefore, the drop of the stability or enlargement of the brake distance by the early lock of the wheel is restrained.