Provided is a full-automatic working apparatus which has a work-object conveying mechanism and can be used on a desk. The desktop working apparatus works a work-object as desired by moving relatively the work-object and a working head. The desktop working apparatus comprises a base desk, a working section placed on the base desk and having a working head and a working-head-driving mechanism, a loader placed integrally at the side portion of the desktop working apparatus, an unloader placed integrally at the side portion of the desktop working apparatus, a conveying section placed on the base desk to convey the work-object fed by the loader to the unloader, and a controlling section; the conveying section having a fixing mechanism for fixing the work-object at the working position, the working section having a working head placed above the working position, the controlling section having a first controller unit placed in the base desk and a second controller unit placed at the side portion or upper portion of the tabletop working apparatus.