In the old days, rice was Sanxing's principal crop. Then, in the late 1970s, it began transitioning to higher-value produce, such as scallions, Asian pears, and tankan oranges.
三星鄉從 1970 年代末起，由原本以稻作為主，陸續轉作青蔥、水梨、桶柑等經濟價值較高的作物。