外债统计监测系统、国际收支统计体系、银行结售汇统计从不同数据来源反映了直接外债的流动和变动，但由于一些主客观原因，使三者对外汇债务流的统计存在较大差异，本文试图通过对山东省１９９９年度直接外债项下相关内容的调研分析，进一步弄清这些数据差异存在的形式及产生? Statistics on foreign debt monitoring system, balance of payments statistics system and statistics on foreign exchange settlement and sales of banks reflect the movements and changes of direct foreign debt from different sources of data. However, due to some subjective and objective reasons, the statistical statistics of foreign exchange debt among the three major differences exist. This article attempts to further investigate the forms and causes of these data differences through the investigation and analysis of the related contents under the direct foreign debt of Shandong Province in 1999.