The potential ecological risks of heavy metals in the soil of three types of urban green space in Jinan City including park green space, residential green space and road green belt were evaluated. The results showed that the soil pollution degree of urban green space in Jinan City was between "clean" and "heavy pollution". Monitoring points of slight pollution, moderate pollution, heavy pollution accounted for 44.4%, 37.8% and 15.6%, respectively. The potential ecological risks of heavy metals followed the sequence as Hg> Cd> As> Pb> Cu> Ni. The potential ecological risks of Hg and Cd were high, but different in different types of urban green space. Generally, the level of soil ecological risks was slight or moderate. However, the soil ecological risk level of several green space was severe. The comprehensive potential ecological risk degrees of different types green space followed the sequence as residential green space > road green space > park green space.