The article explores how Loutu soil in Guanzhong Areas forms over time and its importance. By studying soil profiles and conducting experiments, researchers found that different soil layers formed at specific time periods, with distinct characteristics. The Ap horizon formed around 2000 years ago due to human activities like farming and dust deposition. The Bc horizon, similar to Malan Loess, formed during a dry period 3100-2000 years ago. The Bt horizon formed during a warm period in the Holocene era. These findings suggest that changes in the environment and human activities influence the formation of Loutu soil profiles.