A service wagon has a box-shaped body 10 having an opened upper end, and the body 10 is supported by casters. Two pullout wagon members 20 and 30 are stowed in the body 10, which are pulled out toward the side directions during use. The upper surface plates 22 and 32 of the pullout wagon members 20 and 30 serve as a cover for covering the opening of the body and as a table. Tables 60 and 70 mounted via hinges to the front and back sides of the body 10 can be expanded horizontally, and by expanding the auxiliary tables 62, 64, 72 and 74 that are folded and stowed under the tables 60 and 70, a large table surface can be obtained.