The use of pectinases stands as essential biocatalysts with significant structural diversity, functional versatility, and promising biotechnological applications. Understanding the molecular intricacies of these enzymes and harnessing their potential opens up new avenues for sustainable and eco-friendly solutions in various industrial sectors. Pectinase is one of the developed enzymes of fruit and textile industries. These enzymes break down complex polysaccharides of plant tissues into simpler molecules like galacturonic acids. The role of acidic pectinases in bringing down the cloudiness and bitterness of fruit juice is well established. Recently, there have been a good number of reports on the application of alkaline pectinases in the textile industry for the retting and degumming of fibre crops, production of good quality paper, fermentation of coffee and tea, oil extractions and treatment of pectic water waste. This project discusses a comprehensive overview of the structure, functions of pectinases and biotechnological application. It begins by introducing the enzyme group and its classification, followed by structure and an in-depth exploration of their functions in different sectors, including food, beverage, textile, and biofuel industries. Furthermore, the project discusses the mechanism of pectin degradation and the factors influencing enzyme activity. Lastly, potential future directions and challenges in the field of pectinase research are addressed. The information presented in this project serves as a valuable resource for researchers, scientists, and industrial professionals interested in the applications and potential of pectinases.