Asteroseismology was a blank research field in China before joining the WET network. There are several groups at the Beijing Observatory working in stellar astrophysics, especially the group headed by Prof. S.Y. Jiang, which is mainly engaged in the photoelectric photometry of Delta Scuti-type variable stars. We have participated in some observing runs of DSN. Dr.Yang Binling has introduced us to Prof.R.E.Nather, and since then the astronomers of the Beijing Observatory were involved in asteroseismology and WET campaigns. In late 1994, the agreement for cooperation on asteroseismology was established between Prof. R.E. Nather and Prof. Q.B. Li, director of the Beijing Observatory. The Observatory has become a member of the WET network.