Zhang R.Mahidol University2023-06-182023-06-182022-03-18Proceedings of Science Vol.395 (2022)https://repository.li.mahidol.ac.th/handle/20.500.14594/86547Galactic diffuse gamma ray emission (GDE) is introduced by the galactic cosmic rays interacting with the interstellar medium (ISM) and/or radiation fields (ISRF). Studying galactic diffuse TeV γ-ray emission would help to understand mechanisms of acceleration and propagation of galactic cosmic rays. LHAASO-KM2A with an large area of 1.36 km2, has an excellent ability to study VHE γ-ray astronomy and GDE. In this proceeding, method of background estimation and some techniques to reduce the contaminant of resolved γ-ray sources are briefly introduced. At last, we look into the inner galactic plane (IGP) and present the measurements.MultidisciplinaryConference PaperSCOPUS2-s2.0-8514578348518248039