The completeness of paleoseismic events on active faults is fundamental for understanding fault activity behavior and assessing future seismic hazards. Interpretation of the microgeomorphological characteristics of active faults based on high-resolution images can complement traditional paleoseismic trenching methods for reconstructing comprehensive earthquake recurrence models. Focusing on the Linze fault at the northern Yumushan fault in the central Hexi Corridor, this study generates high-precision topographic data via unmanned aerial vehicle photogrammetry. A detailed interpretation of faulted landforms and measurement of 90 sets of vertical displacement values (single or cumulative) preserved on alluvial-pluvial fans along the Linze fault reveal a cumulative offset probability distribution curve showing its vertical offset clustering characteristics. Six peak accumulated offsets of 0.5, 0.9, 1.5, 2.1, 2.7, and 3.3 m were identified along the Linze fault, revealing that this fault may have experienced at least six paleoseismic events with MS6.6-7.0 since the Late Pleistocene. Comparative analysis with the paleoseismic event completeness revealed by previous trenching studies shows the most recent event occurred at 2.1-2.5 ka BP. The Linze fault exhibits a characteristic earthquake recurrence pattern, with tectonic compression propagating laterally and into the basin interior. According to a comprehensive analysis of the recurrence pattern and elapsed time, the latest seismic event of the Linze fault is near its recurrence interval, indicating a high risk of strong earthquakes.