A tilt steering apparatus comprising: a steering column having a front section that is supported by a portion fixed to a vehicle body by way of a pivot shaft that is arranged in a width direction of the vehicle body, the steering column being able to pivotally displace around the pivot shaft and supporting a steering shaft on an inside of the steering column so as to freely rotate; a support bracket having a connecting-plate section that is supported by the vehicle body so as to be able to separate in a forward direction of the vehicle body, and a pair of support-plate sections that are fastened to the connecting-plate section so as to be suspended downward, and by expanding or contracting a space between the pair of support-plate sections, are capable of a state of holding the steering column from both sides in the width direction, and a state of allowing the pivotal displacement of the steering column; and a bias spring assembled between the steering column and the support bracket in a state of being able to displace in the forward direction together with the steering column and the support bracket, and applying an upward pressure force to the steering column; the bias spring comprising a pair of locking-arm sections and a pressure section; the pair of locking-arm sections having spring-side locking sections that are formed in part thereof, and the spring-side locking sections being locked with bracket-side locking sections that are formed in the support bracket; and the pressure section being directly or indirectly locked with part of the steering column, and causing an upward pressure force to act on the steering column with the spring-side locking sections as a fulcrum; characterized in that when the bias spring interferes in a forward-backward direction of the vehicle body with a member that is located further in front of the bias spring during a stroke through which the steering column and the support bracket are able to displace in the forward direction during a secondary collision, a locked state between the spring-side locking sections and the bracket-side locking sections is released, the bias spring stops in a place without displacing in the forward direction, and the steering column and the support bracket are allowed to further displace in the forward direction. a steering column having a front section that is supported by a portion fixed to a vehicle body by way of a pivot shaft that is arranged in a width direction of the vehicle body, the steering column being able to pivotally displace around the pivot shaft and supporting a steering shaft on an inside of the steering column so as to freely rotate; a support bracket having a connecting-plate section that is supported by the vehicle body so as to be able to separate in a forward direction of the vehicle body, and a pair of support-plate sections that are fastened to the connecting-plate section so as to be suspended downward, and by expanding or contracting a space between the pair of support-plate sections, are capable of a state of holding the steering column from both sides in the width direction, and a state of allowing the pivotal displacement of the steering column; and a bias spring assembled between the steering column and the support bracket in a state of being able to displace in the forward direction together with the steering column and the support bracket, and applying an upward pressure force to the steering column; the bias spring comprising a pair of locking-arm sections and a pressure section; the pair of locking-arm sections having spring-side locking sections that are formed in part thereof, and the spring-side locking sections being locked with bracket-side locking sections that are formed in the support bracket; and the pressure section being directly or indirectly locked with part of the steering column, and causing an upward pressure force to act on the steering column with the spring-side locking sections as a fulcrum; characterized in that when the bias spring interferes in a forward-backward direction of the vehicle body with a member that is located further in front of the bias spring during a stroke through which the steering column and the support bracket are able to displace in the forward direction during a secondary collision, a locked state between the spring-side locking sections and the bracket-side locking sections is released, the bias spring stops in a place without displacing in the forward direction, and the steering column and the support bracket are allowed to further displace in the forward direction.