Provided is an infusion set comprising first drip infusion equipment and second drip infusion equipment. The first drip infusion equipment comprises a first upstream tube, a first downstream tube, and a first three-way stopcock that can switch only between a first position at which the first upstream tube communicates with the first downstream tube and a second position at which the first downstream tube communicates with a first connecting opening. The second drip infusion equipment comprises a second upstream tube, a second downstream tube, and a second three-way stopcock that can switch only between a first position at which the second upstream tube communicates with the second downstream tube and a second position at which the second downstream tube communicates with a second connecting opening. The end opposite to the second three-way stopcock on the second downstream tube is configured to be able to connect to or is connected to the first connecting opening so that the first connecting opening communicates with the second downstream tube.本發明提供一種具備有第1點滴用具及第2點滴用具之輸液套組。第1點滴用具係具有：第1上游側管、第1下游側管、以及第1三通活栓，其為能夠切換使第1上游側管與第1下游側管連通之第1位置、使第1下游側管之第1連結口部連通的第2位置。第2點滴用具係具有：第2上游側管、第2下游側管、以及第2三通活栓，其為能夠切換使第2上游側管與第2下游側管連通之第1位置、使第2下游側管與第2連結口部連通的第2位置。與在第2下游側管中之第2三通活栓相反側的端部係依照：使得第1連結口部與第2下游側管連通的方式，而構成為能夠較接於或者連接於第1連結口部。
