Abstract: The stability of the terrace ridge is a key factor for terrace construction. Meanwhile soil erodibility has effect on the stability of the terrace ridge. To discuss soil erodibility of terrace ridge, embedded terrace ridges were taken as the research object in Anju district of Suining City, which were built in 2015, 2017 and 2019, respectively. Combined with field sampling and indoor analysis, the K of EPIC model was adopted to represent soil erodibility characteristics. The soil erodibility and influencing factors of terrace ridges were analyzed.The results showed that the K value ranged from 0.05 to 0.06(t·hm2·h)/ (MJ·mm·hm2). With increase of construction years, the K value decreased, soil erodibility decreased significantly when embedded terrace ridges were constructed after 5 years. With increase of construction years, the contained clay particles decreased, meanwhile the content of silt and sand particles increased. There were significant differences in soil PAD, ELT, D, air-dried MWD and air-dried GMD between terrace field and terrace ridge at 1 year or 3 years after terrace ridge construction, but no significant differences at 5 years after terrace ridge construction. The soil bulk density at 1 year after terrace ridge construction was significantly higher than those of 3 years and 5 years, which indicated that the physical properties of embedded terrace ridges improved significantly after 3 years construction.With increase of construction years,soil organic matter increased and reached a significant level at 5 years after construction.K was significantly positively correlated with PAD, ELT and water stable D, significantly negatively correlated with air-dried GMD and water stable MWD, and significantly negatively correlated with air-dried MWD and water stable GMD. At 5 years after terrace ridge construction, K was significantly reduced, which was strongly related to soil aggregates. Therefore, embedded terrace ridges can be popularized and applied in the area.