在私法上,诚信原则这一重要原则逐渐发展成为民法中的“帝王条款”。随着社会和法律的发展,诚信原则不断向公法领域扩张,笔者从法理基础说明其扩张的必要性,并从国内外的现状明确其发展趋势,进而验证其在公法领域愈加重要的地位。 In the private law, the principle of good faith gradually developed into an important principle of civil law “imperial clause.” With the development of society and law, the principle of good faith continues to expand to the area of ​​public law. The author illustrates the necessity of its expansion from the legal basis and clarifies its development trend from the current situation both at home and abroad, thereby verifying its increasingly important role in the field of public law.