On the basis of daily rainfall series for 122 stations well covering eastern China (east of 97 ¿E), intraseasonal oscillations of the monsoonal precipitation and the associated spatial-temporal structures were explored by performing multichannel singular spectrum analysis. Three oscillations with quasi-periods of 43, 21, and 12 days were found to be robust, being confined to the region south of 40 ¿N latitude. The spatial-temporal structures, i.e., the propagation of rainfall anomalies, associated with these quasi-periodicities are presented. Also, some information about the amplitudes of these oscillations is provided by using composite analysis. ¿ American Geophysical Union 1996