The environmental factors influence plant growth and distribution directly. The plant distribution is primarily controlled by climatic factors and secondarily by edaphic factors. The climatic factors denotes the sum total of all atmospheric and meteorological conditions over a wide area like temperature, sunshine, air current, humidity, rainfall, etc. Edaphic factors influence a number of plant activities besides being a source of anchorage, water and minerals. The present study reported the relationship between edaphic factors with plant species to determine the main factors affecting the separation of vegetation types in Point Calimere Wildlife and Bird Sanctuary, Nagapattinam district, Tamil Nadu.