Micro plastics are minute particles of plastic found in rivers, seas, soil, and other ecosystems all over the world. Plastic particles with a diameter of less than 0.2 inches (5 mm) are classified as micro plastics. They are either formed when bigger plastics are broken down in the environment, such as microbeads added to toothpaste and exfoliants, or when smaller plastics are broken down in the environment. Micro plastics are found in abundance in seas, rivers, and soil, and are frequently eaten directly by animals. Micro plastic has been detected in significant concentrations in rivers and oceans across the world because of increased plastic use. Plastic trash is expected to reach the ocean at a rate of 8.8 million tons (8 million metric tons) every year. 2, 76,000 metric tons (2, 50 metric tons). The present paper reviews about the impact of micro plastic in the environment and food chain.