Water acts as a great essential life source. It is a well-known fact that life began with water and the water cleanliness is a very important aspect of life to survive on earth. But, the byproducts of science laid their monstrous footsteps as pollutants. Most of these pollutants are toxic and are affecting adversely the water resources (wells, lakes, rivers, and sea), living organisms in the water, and all dependent organisms. Also, due to the carelessness in the use & maintenance of water bodies, millions of tons of plastics and other floating wastes are dumped into the water daily. Most of the time, the water bodies are cleaned manually with human labor which requires a lot of time and cost. To address this, the proposed work in this article aims at the design and development of an Arduino-Uno controlled surface water trash cleaning semi-autonomous boat with a robotic arm. This work is simulated using the open-source simulation tool TINKERCAD. Simulation results have shown that the proposed work would be an alternative for surface water trash collection and maintenance of cleanliness of the water with low cost and minimum human effort.