To provide a dental assistant cart which enables a shadowless light to be attached to the assistant cart and enables a shadowless light irradiation position to be adjusted by the movement of the assistant cart, and prevents the shadowless light from being rocked by the movement of a patient by avoiding mechanical connection of the shadowless light to a treatment seat.

The dental assistant cart 10 includes: a support column 14 vertically extended from the assistant cart 10; a single arm 15 extended from the upper end of the support column 14 in a freely turnable manner; and the shadowless light 3 attached to the distal end of the arm 15.