2008年费米伽马射线空间望远镜发射以后，发现了一类新的双星系统：伽马射线双星。伽马射线双星由一颗致密星和一颗大质量恒星组成，能谱峰值流量出现在大于1MeV的地方。它们全波段的光变都受到轨道周期的调制。由于复杂的星风环境，目前的理论仍不能很好地解释其伽马射线的产生机制。我们需要更多的样本来做这方面的研究。虽然到目前为止，已经有5个伽马射线双星得到了证认。但是理论预计，仍然有很多伽马射线双星未被发现。本项目将利用最新的Fermi的巡天数据，改进搜索方法，寻找新的伽马射线双星。

After the launch of the Fermi gamma-ray space telescope in 2008, a new class has emerged called "gamma-ray binaries". It is composed of a compact object and a massive star, distinguished by emitting their radiated power with a peak in νFν beyond 1 MeV. Variability tied to the orbital period is widespread at all wavelengths. Due to the complex environment from optical component, the gamma-ray emission is still not theoretical resolved well. More samples are needed for the research. Up to now, 5 gamma-ray binaries have been identified, but theorists suspect more in our galaxy. In this project, the latest Fermi-LAT survey data will be analysed with an improved method, aiming to find new gamma-ray binaries.