In this paper, the ENVISAT ASAR Wide Swath Mode (WSM) data from May to October 2003 and ENVISAT ASAR Image Mode SLC (IMS) data from November 2003 to May 2004 are used to retrieve the radial sea surface velocity of Lombok Strait. The doppler centroid anomaly caused by sea surface motion is obtained by Doppler centroid migration method. Then we remove the doppler frequency shift caused by wind and Bragg waves. The data used to verify the accuracy of the results are AVISO (Archiving Validation and Interpretation of Satellite Oceanographic Data), and the variation of the velocity in Lombok Strait is analyzed. The result shows that the retrieval sea surface velocity has a good matching degree with AVISO flow field, the Root Mean Square Error (RMSE) of sea surface velocity derived from WSM and IMS data shows minimal difference with AVISO, which are 0.28 m/s and 0.37 m/s, respectively. Within the study area, the current velocity is -2.56—2.51 m/s from May to September 2003, which is relatively large during 2003—2004. The current velocity decreases in October (-0.79—0.72 m/s), and increases with the month from November to December (−1.64—1.25 m/s). In March 2004, the current velocity reaches a minimum value of -0.58 m/s, and it increases with the month from April to May 2004 (−1.46—1.72 m/s). The northward countercurrent occurs in southern hemisphere summer (December) and autumn (May), and the rest are southward current.