Abstract:The assessment of bridge technical condition is the main basis of bridge management and maintenance. According to two standards of Urban Bridge Maintenance Technical Standard (CJJ99—2017) and Highway Bridge Technical Condition Assessment Standard (JTG/T H21—2011), the difference research is carried out, and the analysis is carried out from the multiple dimensions. Combined with the typical engineering examples, the differences and applicability of the two standards, and the differences in the practical application are compared.