Reduviids are the largest group of pest-specific, efficient hemipteran predators of economically important insect pests worldwide. They are found in the agroecosystems, semi-arid zones, scrub jungles and tropical rain forests. Reduviid predators have been distributed in various crops like soybean, groundnut, pigeon pea, cotton, castor, rice, cabbage, tobacco, pumpkin, bhindi, citrus, sugar cane, sesbania and apple and in secondary and tropical evergreen forests in many parts of the world. In natural and plantation forests, reduviids are living at various heights on vegetation but also in bird nests, caves and spider webs. Their success in every ecosystem/ trophic niche is due to their morphological and physiological adaptations related to the predation. Reduviids are efficient predators on insect pests of crops, playing a significant role in keeping pest populations in check. Some important biological control agents are Platymeris laevicollis Distant, Zelus renardii Kolenati, Rhynocoris marginatus (Fab.), Rhynocoris kumarii Ambrose and Livingstone, Rhynocoris fuscipes (Fab.), Pristhesancus plagipennis Walker, Blaptostethus pallescens Poppius, Acanthaspis pedestris (Stål), Catamiarus brevipennis (Serville), Ectomocoris tibialis (Distant), etc.Even though reduviids are polyphagous predators, many have prey specialisations. Its biological control potential has been evaluated on crops like cotton, soybean, groundnut, bhindi and coconut in field and laboratory experiments and is being commonly used in biological control programmes. Distribution pattern, morphological characters, prey specificity and biological control potential under laboratory, field cage and natural field conditions have been discussed in elaborate manner.