The characteristics of two torrential rainfall processes in Shandong Peninsula in autumn affected by distant Typhoon LIONROCI (2010) and Typhoon USAGI (2013) respectively are diagnosed and analyzed by using conventional observation data and NCEP/NCAR FNL data. The results are as follows. 1) The synoptic situations and physical parameters that caused the two torrential rainfall processes are of similarities and differences. 2) There are significant differences in the origins, tracks, and intensities for the two typhoons. The heavy rainstorm happens as the typhoons move from Guangdong to Guangxi after their landings, the upper northern cold trough, typhoon inverted trough, and shear line at 850 hPa are the main synoptic systems leading to the rainstorms in Shandong Peninsula. 3) The stronger southeastern air flow between the east side of the typhoon and subtropical high continuously transports water vapor from the East China Sea and the Yellow Sea to Shandong Peninsula where the water vapor forms convergence; the convergence at lower layer, divergence at upper layer, and vertical ascending motion are favorable for the occurrence of the torrential rainfall; the atmospheric stratification is unstable before the rainstorms; the baroclinic structure in two-layer or three-layer frontal zone produced by the interaction between typhoon and synoptic system in the middle latitude and the intensification of upper-level jet stream are significant characteristics of the torrential rainfall in Shandong in autumn under the remote effect of typhoons. 4) For these two rainstorms, there are major differences in characteristics of low-level jet stream, baroclinic structure in frontal zone, and unstable atmospheric stratification.