PROBLEM TO BE SOLVED: To provide a liquid waste processing container capable of initiating absorption of liquid waste after that a bag in a bottle is sufficiently expanded since, even if a plurality of containers are arranged in tandem, discharge of liquid waste may be executed independently in individual containers, and a space formed with the bottle, the bag and a lid is converted into a negative pressure condition, and then the bag is converted into a negative pressure condition.SOLUTION: A lid 3 sealing an opening of a flexible bag L stored in a rigid bottle M and an opening of the bottle M comprises: a passage 44 communicating a space 43 formed with the bottle M, the bag L and the lid 3 with an inside space of the bag L and a sealing filter 26 preventing leakage of liquid waste 27 from the passage 44 to outside of the bag L.
