This mechanical project is about designing a grass cutter that works on the solar power instead of using any motor. This grass cutter is a machine that has two sliding blades and those are of equal length to cut a lawn. Solar grass cutter machine is preferred over conventional grass cutting machines because of its ease of use and no power consumption. Also the construction of a solar grass cutter is simple and it creates no pollution. The designed grass cutter finds its use in maintaining lawns and gardens. The conventional grass cutters work when powered with motor and it is inconvenient to use and also grass cutting with it is harder and it creates noise pollution because of its loud engine and air pollution due to the combustion in engine. Designing a grass cutter that works on the solar power is also a way of utilizing renewable energy source which is the requirement of the future. It is a very helpful project that will be in great demands in the near future.