中文摘要：

《立法法》第72条第4款将“立法需求”作为一个衡量设区的市立法权获得实际行使“资质”的法定裁量因素和事实基础条件，使之成为了一个法律概念，但却是一个“不确定法律概念”。为此，在《立法法》的解释和实施中，立法需求不仅成为针对设区的市，而且成为各种立法主体特别是立法职权主体在评判立法项目及其制度设计的全过程中的目标指向，具有了普遍意义。在其本源和生成的过程中，立法需求导源并依次来自利益需求和价值需求。作为一定社会群体的共同制度供给需求，不为既有的政策、道德等其他社会规范调整机制所有效满足的情形下，同时不为已然的法律制度所切实对应，即转化为对法律规范的变革、创设的需求，并因此产生立法参与、立法表达和立法项目、立法过程中构建和提供某种新的法律规范及其实施机制的需要、愿望，此即立法需求。

英文摘要：

In the 4T6h paragraph of 72 article of the legislative law ,legislative need is a legal concept that measure the qualification standard of legislative power of the cities divided into districts. As a result, in the process of the explaination and enforcement of the legislative law,legislative need has common interesting that not only for the cities divided into districts , but ＂also for other legislative mainbody. Legislative need is from need of interests ang values. What is legislative need？ It is a supply need of common system for a certain social groups, which can not be met by the pre -given policy and legal system, etc. then it translate into the needs for design and reform of legal norms, as a result, it produce the needs for constructing and suppling some new legal system and its enforcement system in the process of legislative participation ,legislative expression and legislative project.