附款行政行为由于其方式的弹性和柔性,在实践中受到越来越大的关注并被频繁应用。由于其涉及行政机关自由裁量权的行使,并且大多数附款行为会对行政相对人的权利产生不利影响,所以,我们应对附款行政行为予以重视。文章认为只有对附款的内涵和外延、附款的依据和界限、附款的分类和容许性有一个清晰明了的认识,才能明白附款的合理性及正当性,在行政程序中更好地发挥其作用。 Due to the flexibility and flexibility of the method, appendix administrative action receives more and more attention in practice and is frequently applied. Because it involves the exercise of the discretion of the executive authorities, and most of the appendices have an adverse effect on the rights of the counterpart of the administration, we should attach importance to the administrative act of appending. The article holds that only with a clear and clear understanding of the connotation and denotation of attachments, the basis and limits of appendices, the classification and admissibility of appendices, can we understand the rationality and legitimacy of appendices and make it better in administrative procedures Play its role.