近年来，南海问题成为亚太地区热点问题之一。南海问题并非一个单一的问题，更不是单纯的国际海洋法问题。南海问题涉及自然地理、历史、政治、外交、法律、军事和经济等多学科、多领域问题。这些问题之间存在着错综复杂的关联。本小册子拟简要介绍南海自然状况及相关法律问题等一些基础信息和基本知识，供关注南海问题的读者参考。（202.In recent years, the territorial dispute in the South China Sea has become one of the hot issues in Asia-Pacific region. It is neither an isolated issue, nor solely concerning the international law of the sea, but involves multiple disciplines ranging from physics geography, history, politics, diplomacy, law, military affairs, to economics and so on. These sub-issues are all tightly and intricately interconnected with each other. This book is to briefly introduce some basic information and background knowledge such as the physical conditions of the South China Sea and related legal issues for reference.）