Abstract：Under the change of island operation conditions，the microgrid will cause that the digital twin（DT）

model cannot accurately match the source domain model when migrating，which will lead to low migration

efficiency and other problems. For this reason，an adaptive migration method of digital twins model under the

scenario of micro grid island operation condition changes was proposed. By analyzing the operation characteristics

of the microgrid under the island operation condition，the digital twin model was established，and the time-varying operation condition of the microgrid island was used to match the calculation source domain model. The adaptive migration of the digital twin model was realized by reducing the distribution difference of the source domain data under different island operation conditions of the microgrid. The experimental results show that some characteristic data such as current load and actual current have high migration effect and high migration efficiency，which verifies that the proposed migration method can adapt to different micro grid island operation conditions，and has good practicability.

      Key words：microgrid；island operation；working condition scenario；state of change；digital twin（DT）model；adaptive migration