Abstract: Objective: The current verification work of metro interval shield tunnel architectural clearance has problems such as manual identification of track curve types, low accuracy of clearance calculation results, low verification efficiency and heavy workload. Therefore, a new method of architectural clearance verification for metro interval shield tunnel needs to be studied. Method: A reference coordinate system is established for metro shield interval tunnel crosssection, and measurement data at selected points on tunnel inner wall are collected. Using the geometric relationship of shield circular tunnel inner wall profile, the theoretical values of elevation at the top and bottom measuring points, as well as the theoretical values of horizontal distance at the left and right measuring points, are calculated. And transition curve offsets are calculated using interpolation method. The architectural clearance for each measuring point is calculated based on the theoretical elevation values, horizontal distance values, and offsets. The calculated architectural clearances are compared with the fieldmeasured data to determine if any encroachments exist in the tunnel crosssection. Based on a software tool for metro interval shield tunnel architectural clearance verification developed by this method, tests are carried out using actual engineering data. Result & Conclusion: The engineering data test results demonstrate that the architectural clearance verification software can quickly and accurately read clearance measurement data, calculate transition curve offsets, compute design values for architectural clearances, perform clearance verification, generate verification results automatically, and delivery verification reports. This method significantly improves the accuracy and efficiency of clearance verification, reducing over 80% of verification time.