To provide a dental treating implement housing unit for housing dental treating implements inside the housing unit so as not to be seen by a patient until the patient sits on a treating chair and pulling them out from the housing unit to be used only at the time of dental treatment.

This dental treating implement housing unit 100 is provided with an assistant implement hose housing part 10, a spittoon housing part 20, a mouth external vacuum device housing part 30, and a shadowless light housing part 40 as indicated in Figure 1 (A). In the respective housing parts, an assistant implement holder 11, a spittoon 21, a mouth external vacuum device 31 and a shadowless light 41, etc., as indicated in Figure 1 (B) are housed. When in nonuse, the dental treating implements are housed inside the dental treating implement housing unit 100 as indicated in Figure 1 (A). At the time of use, after the patient sits on the chair, for instance, a remote control switch is operated and the dental treating implements are pulled out from the housing unit 100 and turned to a usable state as indicated in Figure 1 (B).