Abstract
When exploiting, operating a single bucket excavator may occur in the event of an instability that causes the machine to overturn when moving, which is one of the incidents that cause dangerous accidents and accounts for a large proportion when operate the machine. At the accident caused by this incident, there are many causes: such as the operator's level, the sense of compliance with labor safety, the reality of the terrain at the mining site, the technical status and structure of the machine - device; in which the frame structure has a great influence on the stability of the machine. This article deals with the effect of the frame structure types on the excavator's anti-roll stability of a horizontal bucket when moving around the loop.