Abstract:In recent years, the research field of DNA computing has been developed quickly, combing with cross improvements of other related areas, such as information sciences, mathematics, physics, and nanotechnology. For its advantages of high computing speed and highly parallel operation, DNA computing has attracted lots of attentions from scientists. In particular, many progresses in both theoretical study and biochemical experiments have been achieved. As a rising computing technology, DNA computing has a great potential in wide applications. In this paper, DNA computing is divided into 7 categories based on its characteristics：（1）DNA computing based on the strand displacement；（2）DNA computing using the DNAzyme；（3）DNA tile computing；（4）nanoparticles used in DNA computing；（5）DNA computing using SiO2；（6）DNA computing in vivo；（7）other aspect of DNA computing technology.