This　paper　elaborate　a　design　of　a　new　small　simple　6-axis　robot　arm.　The　design　not　only　can　verify　the　6-axis　motion　algorithm,　but　also　have　a　better　property　of　the　economy　and　the　easy-handing.　In　the　mechanical　aspect,　using　the　connection　method　of　the　single　aluminum　plate　reduce　the　load　effectively.　In　the　control　aspect,　using　stepper　motor　driven　system　reduce　the　cost.　This　design　has　a　high　application　value　in　the　process　of　mechanical　arm　development.