Omics is becoming a comprehensive approach to study the molecules in living organisms. The kinds of omics research in trees genomics, transcriptomics, proteomics, metabolomics and other biotechnological studies. Genomics, including functional genomics, structural genomics and comparative genomics, have been studied since the 1990s and some important achievements have been made by Chinese scientists. Genomics encompasses a wide range of activities, including gene discovery, gene space and genome sequencing, gene function determination, comparative studies among species, genera and families, physical mapping and the burgeoning field of bio-informatics.