For example, the genetic background of cancer needs to be combined with protein, which controls cell proliferation. But cancer is characterized by disorder and dysfunction of protein complex. It is hard to imagine a more suitable discipline than protein's omics, which can combine the principles of life with diseases. From this point of view, protein omics will be one of the most exciting fields in the scientific community. We will also promote protein omics and protein omics to other non-protein omics, but at the same time, we will keep in touch with this discipline. Technical challenges are everywhere: rapid identification of protein by mass spectrometry has become a common practice, which has largely solved the problem, but also created challenges: computational biology needs to develop rapidly to catch up with the data wave of protein omics, so as to make meaningful discoveries. This step can eventually be simplified to standardization, sharing, analysis and integration.