 So have you ever been one night just occasionally looking up to the immersive universe wondering where we human beings and all life forms come from? Well one theory suggests that life may come from alien galaxies brought by cosmic bombing with Earth. There are a lot of research of life in Europa and other planets but some others believe that life comes from deep ocean. The answers may be in the deep ocean and hidden in the interior of the Earth. So life may come from heterosomal winds in the deep ocean where it believed holding the ideal conditions to foster the first living cells. But heterosomal winds is only one of the windows to a gigantic subsurface life buried in the sediments and rocks. They are the least explored and unknown life on Earth. Who are they? How many of them are there? Are they good things or bad things to us? This deep life are extremely difficult to be explored. Deep ocean exploration and subsurface life exploration leads a lot of new technologies such as modern engineering technologies to obtain samples from the surface and also meet molecular modern technologies to detect life as most of them are new and unknown. I started a deep life research about 15 years ago when China launched the deep ocean exploration. At that time we have only have very simple tools such as the box samplers to get samples for life detection but still a big diversity of microbes were detected and gradually one kind of archaea named as MCG caught up my eyes as it appeared at every seven samples I checked and later on we find that this kind of archaea belong to a novel archaea phynum named as basia cuta. Basia cuta is very abandoned in ocean sediments where they take up carbon from organic substances like proteins and meanwhile they take up CO2 and they are believed to play important roles in carbon cycling in marine sediments. The number of cells in marine sediments are about 300,000 times more than the stars in the universe but also the subsurface rocks provides the largest place for life to thrive but the cells in the rocks are still very difficult to be estimated and our earth is changing rapidly since 19th century the CO2 in the atmosphere has a rising 30% which caused our earth's temperature rising abruptly. Has this changing by human activities where it influenced the subsurface world and around 19% of earth's carbon is stored within the earth? How does deep life can win carbon transformation and where this transformation will eventually influence the upper world to address these questions we need internationally multidisciplinary collaborations and thus deep life community within deep carbon observatory has constructed to address integrate knowledge, skills and resources to address these grand questions. Meanwhile deep lives in the subsurface sediments about 2.5 kilometer below the seafloor has been detected. Deep life lives in an environment extremely lack of energy but still the forms complex metabolic lightworks and Eukarya is now supposed originated within Akia which Eukarya we human beings belong to Eukarya and and deep life which can win transform carbon transformation over billions of years transform the remodeled our earth and the deep life or role buried deeply in the ocean still it holds the case to answer the origin the diversity the evolution of the life on earth and also the impact and interaction of the deep life with the upper surface world we have we have shaped the future of our earth and it's actually still unknown how much we still unknown at this moment thank you very much