The invention has for its object to provide a cap for medical equipment that is capable of improving on the operability of a treatment part while acting as a cover for decreasing stains.A cap 10 for medical equipment includes a base member 11 attached to a distal end of medical equipment 1 and portions 12, 13, 14 and 15 extending out of the base member 11, wherein the portions 12, 13, 14 and 15 are put into passive operation.