募商人入纳粮草于规定的沿边地点,给予钞引,使至京师或他处领取现钱或金银、盐、茶、香药等,谓之“入中”。“入中”是北宋时期一种规模宏大的商业活动。五十年代戴裔煊先生曾对盐钞进行过较深入的研究,并谈及“入中”,其中不乏真知灼见,但对“入中”活动的内容和作用论述得似嫌不足。至于近年来系统探讨“入中”的文章,以笔者孤陋寡闻,尚未见到一篇。这种情况表明,“入中”这一问题并没有引起史学工作者的真正重视。浅见以 Raising merchants into the forage at the specified border locations, giving money cited so that the capital or other place to receive cash or gold and silver, salt, tea, incense, etc., that the “entry.” “Into” is a large-scale commercial activities in the Northern Song Dynasty. In the 1950s, Dai Yijia had conducted a more in-depth study of salt-shavings and talked about being “admitted to China.” There is no lack of insight into it. However, it is too inadequate to say that the content and role of the “entry-into-China” activity are discussed. As for the system in recent years, “into” the article, the author ignorant, have not seen an article. This situation shows that the issue of “entering China” has not caused the genuine attention of historians. Humble opinion