Inclusive and prudent regulation is the main principle of digital economy regulation，and the key lies in grasping the balance between innovation and regulation，and forming a social co-governance management pattern of inclusive innovation and prudent regulation. Under the primary indicator of “inclusive and prudent regulation”，there are two secondary indicators，namely “innovative regulatory mechanism” and “application of flexible enforcement methods”. Under the secondary indicator “innovative regulatory mechanism”，two tertiary indicators are set up，namely “whether there is a fault-tolerant initiative” and “whether there is a diversified regulatory mechanism”；and the secondary indicator The second level indicator，“Use of flexible enforcement methods”，has a third level indicator，“Availability of alternative flexible enforcement mechanisms”. Upon assessment，the assessed cities have basically completed the work of setting up fault-tolerant initiatives in the field of market supervision；most of them have already innovated diversified supervision mechanisms and established alternative flexible enforcement mechanisms. However，the following problems still exist：fault-tolerance mechanisms such as penalty-free lists have many legal risks；diversified regulatory mechanisms need to be further improved；and flexible law enforcement measures still lack an institutional basis. In the future，the positioning of fault-tolerant mechanisms such as the penalty-free list should be clarified in the administrative law system，attention should be paid to the legal review of discretionary norms such as the penalty-free list；the diversified regulatory mechanism should be systematically perfected；and the institutional support should be provided for flexible law enforcement to improve the level of law enforcement.