Using tea trade panel data on the main imported countries of Japan, the paper analyses the price effects by SPS on imported tea of Japan. The Japanese Positive List System (PLS) had a profound impact on the price of Japan imported tea. Furthermore, we draw the conclusion that the promulgation of PLS improve the price of imported tea, while the implementation of PLS hinder the price. The price effects of PLS is helpful to the exporters to cope with the technical barriers of trade.