The impact of Indian tea on Sichuan tea market in Tibet has received little scholarly attention to date. Located on the southern border,Tajianlu was a convenient market where Tibetans could carry on trade and make purchases of tea in 1696. With the Tibetans' increased demand for tea,the trade via Tajianlu developed steadily and had a great affect on the economy of Sichuan. Building on earlier research,this paper will use new historical materials, to investigate the tea trade, its route and influence on other places．