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The geoeffectiveness of interplanetary coronal mass ejections(ICMEs) is an important issue in space weather research and forecasting.Based on the ICME catalogue we have established recently and the Dst indices from the WDC (World Data Center), the geoeffectiveness of the ICMEs from 1996 to 2013 is studied in detail.According to different signatures, all ICMEs are divided into three types: isolated ICMEs (I-ICMEs), multiple ICMEs (M-ICMEs) and shock-embedded ICMEs (S-ICMEs), resulting in a total of 338 events.The main findings of this work are: (1) 58% of ICMEs caused geomagnetic storms with Dstmin <-30 nT,while 21% caused intense geomagnetic storms with Dstmin <-100 nT.Mean while, almost all intense geomagnetic storms are caused by ICME groups.(2) The south component of the magnetic field Bs, the solar wind velocity and the dawn-dusk electric field Ey =VxxBs are the most important parameters in determining the geoeffectiveness of ICMEs.We further analyze the critical values of these parameters of the ICMEs which can cause geomagnetic storms.(3) The extremely low occurrence of geomagnetic storms in Solar Cycle 24 is mainly caused by the fact that the number of Earth-arrived strong ICMEs is rare.(4) Shock-embedded ICMEs have a high possibility of causing geomagnetic storms, especially intense geomagnetic storms.It is statistically shown that such structures ICMEs are important sources of geomagnetic storms, especially intense storms.