Fermi、MILAGRO等设备的观测已经表明，伽玛暴的高能辐射将延伸至甚高能伽玛波段（>100GeV）。LHAASO是我国新一代甚高能伽玛射线探测器和高能宇宙线探测器，在几百GeV以上，LHAASO的甚高能伽玛射线探测器灵敏度高于Fermi/LAT,因此LHAASO将有可能观测到伽玛暴的甚高能波段辐射。我们拟主要利用LHAASO的观测数据开展以下几方面的工作：1.利用LHAASO等高能设备的观测数据,考虑光子对湮灭限定伽玛暴辐射区的洛伦兹因子；2.研究伽玛暴甚高能辐射的起源，探讨各种情况下逆康普顿散射是否能解释甚高能辐射数据；3.结合LHAASO数据，研究Fermi/LAT暴观测到的高能额外成分的起源。通过项目的实施，将揭示伽玛暴辐射机制、各波段辐射产生的位置、辐射区运动速度等。

The observation of Fermi, MILAGRO, etc. have indicated that GRBs emit the very high energy emission (VHE, >100GeV) . LHAASO is a new VHE and high energy cosmic ray telescope. Above several hundred GeV bands, LHAASO is more sensitive than Fermi/LAT. So LHAASO is expected to observe the VHE emission of GRB. We plan to carry out the following subjects with the LHAASO data: 1. with the data of LHAASO and other VHE instruments, we will constrain the Lorentz factor of GRB emission region by considering the pair production; 2. figure out the origin of VHE emission, and diagnose whether the inverse Compton radiation can explain the VHE data; 3. combining the LHAASO and Fermi/LAT data, figure out the origin of extra high energy component in spectrum. By carrying out the project, we will reveal the GRB radiation mechanism, the positions where the emission in every band are produced and the emission region Lorentz factor.