PROBLEM TO BE SOLVED: To enable even an operator having little experience to accurately recognize a placing procedure of an endoscope into a processing tank.SOLUTION: A holding net 1 for an endoscope to be set inside a processing tank 58 for applying a reprocess includes: a first operation part holding part 3a holding an operation part 102 to be placed first an insertion part holding part 2a holding an insertion part 103 to be placed second a first connector holding part 3b holding a connector 105 to be placed third and light emission emphasis parts 31, 36A-36C making the insertion part holding part 2a and the first connector holding part 3b perform index display in a prescribed placing procedure, with respect to an endoscope 101 having the operation part 102, the insertion part 103, a universal cord 104, and the connector 105.