Citrus orchard and peak cluster depression landform are widely distributed in Guangxi province. At present, the characteristics of soil infiltration under the controlling of land use and landform are still unclear. In order to support the sustainable development between industrialization of citrus and ecology in the karst area, the field soil infiltration tests were carried out using the surface ring infiltration meters combined with the dyeing (bright blue) tracing method in a typical dolomite peak cluster depression watershed, Guilin. The characteristics of matrix flow and preferential flow in depressions and terraces in citrus orchard were defined quantitatively. The results showed that: 1) Matrix flow is the primary pattern for water infiltration. 2) The stable infiltration rate of matrix flow was significantly higher in depressions citrus orchard (91.60~145.75 mm/h) than that in the terraces citrus orchard (35.02~44.78 mm/h), while the preferential flow showed the same trend (depressions citrus orchard, 79.78~118.30 mm/h; terraces citrus orchard, 12.63~23.18 mm/h). 3) Preferential flow had strong spatial variability, and the stained area of decreases with soil depth with multiple peaks. 4) The dyeing depth in terraces citrus orchard (17.4 cm) was significantly smaller than that in depressions citrus orchard (25.5 cm). The dyeing area in 0~5 cm depth of terraces citrus orchard was up to 61.23%, while only 38.95% in depressions citrus orchard. 5) Soil profile in terraces citrus orchard presents fewer preferential flow paths and lower levels of preferential flow degree than that in depressions citrus orchard, which potentially increasing the utilization of soil water for orange trees. The results were helpful for understanding the hydrological process in orangery of karst cluster depressions, which was vital for providing reference to soil moisture management for the ecological sustainable development of citrus industrialization in karst area.