Mosquitoes cause major health hazards to human beings as they are the carrier of various diseases. The most important thing to reduce the incidence of vector borne diseases is controlling the mosquito population, Vector control is facing a that due to the emergence of resistance in vector mosquitoes to conventional synthetic insecticides, warranting either adopting counter measures or development if newer insecticides. Plants acts as alternative agents for control of vectors because they are rich in bioactive chemicals. Therefore in the current study we investigate the ovipositional deterrence activity of Terminalia catappa methanol and acetone leaf extracts on Aedes aegypti. The effect of methanol and acetone leaf extracts of T. catappa on oviposition of Ae.aegypti was determined under two sets of conditions (choice and no choice oviposition assay) as suggested by Chen et al., (1996) [9]. Among the total number of eggs laid, the control medium possessed high percentage of eggs viz. 39.90% (methanol) and 33.89% (acetone) when placed along with ovitraps with 0.1, 0.50, 1.0, 1.50 and 2.0% in which appeared 28.15, 20.19, 8.045, 3.666, 0.040% (methanol) and 29.69, 23.53, 9.715, 3.131 and 0.032% eggs (acetone) respectively (choice oviposition test). Percent oviposition in 0.1, 0.50, 1.0, 1.50 and 2.0% methanol and acetone leaf extracts of T.catappa was 31.50, 18.20, 10.72, 3.187 and 0.094 % (methanol) and 33.64, 22.62, 13.82, 6.367 and 0.123% (acetone) which were less compared to their control 68.49, 81.79, 89.27, 96.81 and 99.90 % (methanol) and 66.35, 77.37, 86.17, 93.63 and 99.87 % (acetone) respectively (no choice oviposition test). Result of the present study revealed that the phytocompounds which is present in methanol and acetone leaf extracts of T. catappa may be utilized as a oviposition deterrent.