Earth-rockfill dams are a unity of saturated and unsaturated seepage zones. Seepage is thus a key factor for the sound operation of earth-rockfill dams. Soil-water Characteristic Curve （SWCC） is an important basis to simulate unsaturated seepage zones. With a large number of earth-rockfill dams in Zhejiang Province， it is significant to study the water retention capability of the filling soil. Firstly， it is necessary to find a suitable model to describe the SWCC of the filling soil. In this paper， water retention tests were conducted via pressure plate instrument on three typical filling soils for earth-rockfill dams in Zhejiang. VG， FX and MX Models were adopted in fitting the experimental data. The analysis on fitting results suggest that the VG Model was not suitable for earth-rockfill dams， while the FX and MX Models achieved preferable effects，and FX Model excelled at applicability and universality.