Mobility of the physically disabled or crippled people is a great concern of the society. It is really difficult to realize the problems and sorrows of a physically disabled/crippled person who is partially or fully dependent on others or confining himself in a wheel chair with limited mobility. This paper provides idea of currently available three-wheelers f or disabled people and proposes a new improved design of a solar powered three-wheeler suitable f or countries like Bangladesh which is an under developed country with huge disabled/crippled people from war, accidents and diseases. This three-wheeler is operated by solar power and suitable f or outdoor use. Solar power option enables the disabled people to use it at any place, even in remote areas where there is no electricity. A general survey had been conducted on disabled people using wheel chairs and manual three-wheelers and the opinions of the experts working with the disabled people are also taken in to consideration to identify the needs and requirement f or designing the solar three-wheeler. The proposed solar three wheeler is meant to match and exceed the conventional three-w heeler’s facilities with a more intelligent and efficient design. A solar panel to produce solar electricity, a battery system f or preserving electric power, an efficient motor, cushion seat, all terrain tires are used f or this solar three-wheeler. Due consideration and attention is given to better maneuverability, effective use of solar energy, biomechanics and comforts, increased suspensions, all terrain traffic ability, ease of use etc. while designing this solar three-wheeler f or physically disabled people of the country