Geotextiles are widely used for soil stabilization and erosion control, yet the role of burial depth in regulating soil desiccation cracking and evaporation remains unclear. This study investigates the depth-dependent effects of geotextiles on crack evolution and evaporation behavior through controlled laboratory experiments. Crack development was quantified using crack area ratio and probability entropy, while evaporation behavior was characterized by evaporation rate, stage transitions, and residual water content. Results show that increasing geotextile burial depth accelerates crack development but significantly reduces crack network disorder. When burial depth increased from 0.5 to 2.0 cm, the final crack area ratio showed a relative increase of 159.36%, whereas the probability entropy showed a relative decrease of 0.77%. Deeper burial also simplified the evaporation process from five to three stages and increased the proportion of the residual evaporation stage to 49.3%, accompanied by a substantial reduction in residual water content. Based on these observations, a depth-dependent evaporative cracking framework is proposed to explain how geotextile burial depth governs evaporation resistance, crack initiation, and final crack intensity. The findings identify burial depth as a key design parameter for optimizing geotextile-based soil stabilization and moisture management, particularly in arid and semi-arid regions.