Previous multi-stage fracturing tracer evaluation methods typically used the ratio of tracer backflow in one stage to the total well backflow to represent the gas production contribution rate. However, the evaluation results of the P5 well, which was first applied to the Shahezi Formation tight gas reservoir in the Xujiaweizi fault depression, were inconsistent with geological understanding. To address this, based on the original tracer data combined with geological understanding and fracturing construction curves, this study reestablished the matching mode between the response characteristics of tracer data and the artificial fracture types in the Shahezi Formation tight gas reservoir. The research revealed that it was an objective method to characterize the artificial fracture type in the reservoir with the tracer backflow curve of each stage, and an accurate evaluation of the methane emissions contribution of the horizontal wells in this region could subsequently be achieved. Specifically, ① The tracer content was relatively low but gradually increased over time, with a long duration of backflow; most fractures belonged to the complex type, and the conductivity of each level of fractures differed little; the transformation effect was good, and this type of fracturing stage was the main contributor to methane emissions. ② The tracer content fluctuated and exhibited a brief period of concentrated backflow, with simple and complex fractures coexisting; there was a significant difference in conductivity, and this type of fracturing stage also contributed to methane emissions on some level. ③ The tracer concentration was high and varied greatly, and the characterized fractures were mainly simple ones; the flow conductivity of the fractures differed significantly, and this type of fracturing stage contributed little to methane emissions. ④ The fracturing stage had no tracer backflow, indicating the closure of fractures near the wellbore and no contribution to methane emissions. Through the verification of production dynamic data and new drilling information, it has been confirmed that using the tracer flowback concentration curve to judge the type of artificial fractures is an objective and effective technique for evaluating the artificial fractures post-fracturing. This plays a significant role in guiding the deployment of subsequent well positions, optimizing the well pattern, guiding the design of fracturing schemes, and improving the development effectiveness of oil and gas fields.