A combination weighing apparatus comprising: a plurality of hoppers that receives articles inputted from an outside, temporarily stores the articles, and discharges the stored articles downstream; a discharge chute that receives the articles discharged from the hoppers and causes the articles to slide downstream; an acquisition unit that acquires weight values of the articles stored in each hopper; and a control unit that performs combination calculation on the basis of the weight values acquired by the acquisition unit and discharges the articles from a hopper determined by the combination calculation to the discharge chute, characterised in that the discharge chute includes: a first slide surface having a plurality of openings; and for each opening, a second slide surface that covers a part of the opening and is disposed at a position on an inner side of the discharge chute with respect to the first slide surface, and the second slide surface is formed continuously with the first slide surface on an upstream side, a left side, and a right side of the opening, and each second slide surface includes: a left flat surface rising from the first slide surface toward the inner side on a left side of the opening; a right flat surface rising from the first slide surface toward the inner side on a right side of the opening; and an upper flat surface that connects the left flat surface with the right flat surface. a plurality of hoppers that receives articles inputted from an outside, temporarily stores the articles, and discharges the stored articles downstream; a discharge chute that receives the articles discharged from the hoppers and causes the articles to slide downstream; an acquisition unit that acquires weight values of the articles stored in each hopper; and a control unit that performs combination calculation on the basis of the weight values acquired by the acquisition unit and discharges the articles from a hopper determined by the combination calculation to the discharge chute, characterised in that the discharge chute includes: a first slide surface having a plurality of openings; and for each opening, a second slide surface that covers a part of the opening and is disposed at a position on an inner side of the discharge chute with respect to the first slide surface, and a first slide surface having a plurality of openings; and for each opening, a second slide surface that covers a part of the opening and is disposed at a position on an inner side of the discharge chute with respect to the first slide surface, and the second slide surface is formed continuously with the first slide surface on an upstream side, a left side, and a right side of the opening, and each second slide surface includes: a left flat surface rising from the first slide surface toward the inner side on a left side of the opening; a right flat surface rising from the first slide surface toward the inner side on a right side of the opening; and an upper flat surface that connects the left flat surface with the right flat surface. a left flat surface rising from the first slide surface toward the inner side on a left side of the opening; a right flat surface rising from the first slide surface toward the inner side on a right side of the opening; and an upper flat surface that connects the left flat surface with the right flat surface.