Volatile Organic Compounds (VOCs) are the most important parameter to establish the tritrophic interaction in between insect, plant and predator or parasitoid. Naturally, insect induced plant volatile attract the natural enemies of that insect. These mixtures of volatiles attract predator as well as parasitoid. In this review, objective is the role of VOCs in tritrophic interactions from an ecological as well as an implemented perspective. Several methods are applicable here. More popular technique is VOCs extraction by HS-SPME and headspace push- pull. Qualitative and quantitative volatiles are analyzed by GC-MS & GC-FID. Most important method is GC-EAD for identifying specific VOCs as well as two-choice arena. Most popular specific compounds are fatty acid derivative, aromatic compounds, aldehydes, alcohols, terpenes, amino acid derivative, sesquiterpenes and a ketone. These compounds play a crucial role for tritrophic interaction. Tritrophic interaction enhance the knowledge of predator and prey interaction also. This overview focuses on the how specific VOCs can interact with insect, plant and natural enemy and thus this specific knowledge can be implemented in pest control by biological control method.