PROBLEM TO BE SOLVED: To provide a processing method of waste fluid containing body fluid, a processing device of it and a storing container for waste fluid containing body fluid.SOLUTION: A device comprises: a storing container 22 which stores waste fluid 27 containing body fluid in its inner section and to which a cap 22 is detachably attached, in which a waste fluid valve communicated to an outlet of the storing container 22 and capable of being usually closed is arranged, and from which waste fluid 27 is discharged by opening the waste fluid valve while maintaining capped condition by the cap 22. Wash means 15a to 15e are introduced into an inner section of the storing container 22 to be washed when the waste fluid valve is opened. The washing device 1 is installed on a determined position in a hospital or a nursing home. The storing container 22 storing waste fluid 27 is moved to the washing device 1 and one or more storing containers 22 are installed into the washing device 1 in a state where outlet faces downward. The waste fluid valve is opened to discharge the waste fluid 27 with gravity. The wash means 15a to 15e are blown to the storing container 22 via the outlet to wash the container.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】体液を含む廃液の処理方法およびその処理装置並びに体液を含む廃液の貯留容器を提供する。【解決手段】内部に体液を含む廃液27を収容しキャップ22を着脱可能に被着した貯留容器22を備え、前記貯留容器22の排出口に臨ませて常時は閉弁可能な廃液弁を設け、該廃液弁を開弁しキャップ22の被着状態を維持して廃液27を排出する。廃液弁の開弁時に洗浄手段15a~15eを貯留容器22の内部に導入して洗浄する。病院または介護施設の定位置に洗浄装置1を設置し、該洗浄装置1へ廃液27を収容した貯留容器22を移動し、排出口を下向きにして一または複数の貯留容器22を洗浄装置1に設置し、廃液弁を開弁し廃液27を自然落下させて排出するとともに、排出口を介し洗浄手段15a~15eを貯留容器22の内部に吹き付けて洗浄する。【選択図】図1