Insect science has been experiencing the power of genomics and new developing technologies in the last decade. Currently, more than 29 species of arthropod genome sequencing projects have been completed or in progress. The number of species being sequenced will be rapidly increased in the near future by taking advantage of reduced sequencing cost and developing new sequencing technologies. At the same time, other technologies in bioscience have also been undergone rapid development. Among many, the most noticeable techniques that have been applied in the studies of insect science are proteomics, insect transgenesis, and RNA interference (RNAi). Like other important transitional points in biology aided by technological revolution, breaking the technical limitations is expected to lead to innovations in biological concepts.