A combination weighing apparatus comprising: a hopper temporarily holding an article and discharging the article; and a support body detachably supporting the hopper, wherein the hopper has: a main body portion holding the article; and an attachment portion attaching the main body portion to the support body, the attachment portion has a first member extending along a width direction of the main body portion and a second member disposed upstream of the first member in a direction of movement of the article in the main body portion and extending along the width direction, the support body has an attached portion (30, 31) to which the attachment portion of the hopper is attached, and the attached portion (30, 31) has: a first defining portion defining a position of the first member and a second defining portion defining a position of the second member at an attachment position where the hopper is attached to the support body; characterized by a support portion disposed between the first defining portion and the second defining portion in a height direction of the support body and capable of supporting the first member; and a guide portion disposed on a track of the second member at a time when the hopper is swung to the support body side about the first member with the first member supported by the support portion and guiding the second member such that the second member moves to a lower side in the height direction with respect to a position on the track and is positioned in the second defining portion. a hopper temporarily holding an article and discharging the article; and a support body detachably supporting the hopper, wherein the hopper has: a main body portion holding the article; and an attachment portion attaching the main body portion to the support body, the attachment portion has a first member extending along a width direction of the main body portion and a second member disposed upstream of the first member in a direction of movement of the article in the main body portion and extending along the width direction, the support body has an attached portion (30, 31) to which the attachment portion of the hopper is attached, and the attached portion (30, 31) has: a first defining portion defining a position of the first member and a second defining portion defining a position of the second member at an attachment position where the hopper is attached to the support body; characterized by a support portion disposed between the first defining portion and the second defining portion in a height direction of the support body and capable of supporting the first member; and a guide portion disposed on a track of the second member at a time when the hopper is swung to the support body side about the first member with the first member supported by the support portion and guiding the second member such that the second member moves to a lower side in the height direction with respect to a position on the track and is positioned in the second defining portion. a main body portion holding the article; and an attachment portion attaching the main body portion to the support body, the attachment portion has a first member extending along a width direction of the main body portion and a second member disposed upstream of the first member in a direction of movement of the article in the main body portion and extending along the width direction, the support body has an attached portion (30, 31) to which the attachment portion of the hopper is attached, and the attached portion (30, 31) has: a first defining portion defining a position of the first member and a second defining portion defining a position of the second member at an attachment position where the hopper is attached to the support body; characterized by a support portion disposed between the first defining portion and the second defining portion in a height direction of the support body and capable of supporting the first member; and a guide portion disposed on a track of the second member at a time when the hopper is swung to the support body side about the first member with the first member supported by the support portion and guiding the second member such that the second member moves to a lower side in the height direction with respect to a position on the track and is positioned in the second defining portion. a first defining portion defining a position of the first member and a second defining portion defining a position of the second member at an attachment position where the hopper is attached to the support body; characterized by a support portion disposed between the first defining portion and the second defining portion in a height direction of the support body and capable of supporting the first member; and a guide portion disposed on a track of the second member at a time when the hopper is swung to the support body side about the first member with the first member supported by the support portion and guiding the second member such that the second member moves to a lower side in the height direction with respect to a position on the track and is positioned in the second defining portion.