This paper presents a result of the usability test about height adjustable washbasin for the non-disabled and disabled. Survey method was main trend in the existing studies about height of washbasin. But survey method data is qualitative data. Recently, experiments to get quantitative data in these cases by EMG and 3D Motion Capture System. Usability test was performed two types evaluations. Qualitative and quantitative evaluations were evaluated by six steps of height of wash basin. Quantitative evaluation consists of EMG and Joint moment data. And qualitative evaluation consists of survey2 times. We have analyzed qualitative and quantitative data complementary and confirmed that each heights of washbasin make a difference of usability. This paper proposes a method and height range of adjustable of wash basin, it can be applies other product development for all people with disability or non-disability.