Disclosed is a one touch open-type sealing cap for a fluid container. According to the present invention, the one touch open-type sealing cap for a fluid container comprises: a fixing unit which is coupled to a withdrawing unit of a fluid container and has a hollow having the fluid passed therethrough; a sealing unit which is embedded into the fixing unit for sealing the hollow; an inner cover which is coupled to the fixing unit to prevent the sealing unit from being exposed to the outside, and forms a breaking unit formed to be broken by external forces to expose part of the sealing unit to the outside; and an outer cover which is inserted to cover the inner cover and part of the fixing unit and is fused and coupled to the breaking unit to be integrated with the inner cover. When an external force is applied to an opposite direction of an inserting direction with respect to one side of a boundary in the outer cover, the outer cover is separated with the breaking unit. According to the present invention, a user rapidly removes the outer cover and the breaking unit without using both hands to use immediately the fluid container and thus, can easily deal with an emergency. In addition, due to a minimum exposure structure, the present invention has the inner cover for primarily blocking external foreign substances or bacteria by covering the sealing unit embedded in the fixing unit and the outer cover for secondarily blocking external foreign substances or bacteria by being placed to cover the inner cover, thereby keeping the fluid container hygienically and safely.수액용기용 원터치 개봉형 밀봉마개가 개시된다. 본 발명에 따른 수액용기용 원터치 개봉형 밀봉마개는, 수액용기의 인출부에 결합되고, 수액이 통과하는 중공이 구비된 고정부; 상기 중공의 밀폐를 위해 상기 고정부에 내설되는 밀봉부; 상기 밀봉부의 외부노출을 방지하기 위해 상기 고정부에 결합되고, 외력에 의해 파단되도록 이루어져 상기 밀봉부의 일부를 외부로 노출시키는 파단부가 형성된 내측커버; 및 상기 내측커버 및 상기 고정부의 일부를 감싸도록 끼워지고, 상기 파단부와 융착결합되어 상기 내측커버와 일체를 이루는 외측커버를 포함하여, 상기 외측커버의 가장자리 일측에 대하여 끼움방향의 반대로 외력이 가해지게 되면, 상기 외측커버가 상기 파단부와 함께 분리되는 것을 특징으로 한다. 본 발명에 의하면, 사용자는 양손을 모두 사용하지 않고도