Abstract: Exoplanets search is one of the hottest topics in modern astronomy. The detection method includes indirect detection and direct imaging. Currently, over 1 000 exoplanets have been confirmed mainly by the indirect detection method such as radial velocity. While the direct imaging study of an exoplanet will allow to characterize its important physical parameters such as the atmosphere and temperature. Furthermore, to study the atmosphere of an Earth-like exoplanet in the habitable zone of a solar type star by imaging and further spectroscopy analysis will allow us to confirm the Exo-life signal, which will help to finally answer “Are we alone in the universe?”, which is one of the most fundamental scientific questions. The research of Earth-like exoplanets will be helpful to make a breakthrough on our current knowledge of life, which has been keeping a high attention rate in public domain.

Key words: exoplanet, exo-life, detection technique, ground-based telescope, space detection mission