A total of 54 profiles of soils derived from various main purple strata were collected according to the nomenclature of purplish soil in Chongqing area for analysis of total titanium and amorphous titanium. Results show that total titanium (TiO₂) varied in the range of 2.70 g kg^-1to 23.9 g kg^-1 in content, averaging 7.52±3.90 g kg^-1. The content of soil total titanium was closely related to parent rock of the soil, while it was little affected by weathering degree of the soil, and its distribution did not have any set rule to follow Comparison in titanium value (ratio of total Ti/ amorphous Ti) between the soils at their initial weathering stage and their parent rocks showed little difference, following a decreasing order of Trias T₁f ＞ Jurassic J₃p ＞ Jurassic J_1—2z＞ Jurassic J₂s ＞ Jurassic J₃s ＞ Cretaceous K₂j Titanium value decreased remarkably with rising weathering degree and varied in coincidence with the description of weathering degree based on value of SiO₂/(Al₂O₃+Fe₂O₃). The correlation coefficient between the two reaches a significant level ( r = -0.809 1 * * ). If the titanium values are divided into seven grades, fromⅠ to Ⅶ, purplish soils different in weathering degree can be sorted into their respective grades. Thus grades of titanium value can be used to describe weathering degree of purplish soils.