Steering device of vehicle

A vehicle steering device, comprising:

• a worm shaft including a gear portion having a worm gear engaged with a worm wheel, a first end portion coupled to a worm housing by a first bearing and connected with a motor, and a second end portion coupled to the worm housing by a second bearing;
• and
• a spacer positioned between the gear portion and the second bearing to prevent a grease applied to the worm gear from being introduced to the second bearing,
• wherein the spacer includes a wing portion protruding from a surface of the spacer facing the worm gear,
• wherein the wing portion includes an obliquely angled portion extending in a direction toward the worm gear, such that a gap is defined between the obliquely angled portion and an outer circumferential surface of the worm shaft, and a distance across the gap increases along the direction toward the worm gear.