A powder container includes: a powder containing unit which has an opening portion formed at one end portion thereof, contains a powder therein, and is formed of a flexible material; a discharging unit which is provided in the end portion provided with the opening portion, is fixed to a powder conveying apparatus, and discharges the powder delivered from the opening portion out to the powder conveying apparatus; and a portion to be locked which is provided in an end portion opposite to the opening portion and is locked to a locking portion of the powder conveying apparatus while a delivery member is biased in a direction opposite to the movement direction. When the delivery member is pressed inward from the outside of the powder containing unit so as to move toward the opening portion, the powder is delivered out from the opening portion.