The ruins soil of Qicheng is silty clay, typically linked with unfavorable characteristics such as loose structure, low strength, strong capillary action and poor hydraulic property. How to improve the performance of the soil in the restoration site is of great concern. In this study, glutinous rice slurry, quartz sand, alumina and calcium fluoride were added to the silty clay in Qicheng site for improvement. The imitation ruins soil was prepared by this method. The mechanical properties, microstructure and color difference of the imitation ruins soil modified with different glutinous rice slurry contents (of 0%, 1%, 3%, 5%, 7%, and 9% concentrations) were studied. The results show that with the increase of the glutinous rice slurry concentration, the strength and internal friction angle of soil samples increase first and then decrease, and the cohesion shows a linear increasing trend; Imitation ruins soil improved by 3% concentration of glutinous rice slurry had the largest shear strength, unconfined compressive strength and internal friction angle, and its microstructure is dense; The color difference analysis of the soil sample shows that the color difference between the imitation ruins soil, imitation ruins soil improved by 3% concentration of glutinous rice slurry and the ruins soil are all small; Furthermore, using glutinous rice slurry to improve the MICP technique, it is found that glutinous rice slurry can increase the activity of bacteria and promote the production of calcium carbonate. With increasing of maintenance days, the strength of modified MICP soil has an increasing tendency, and the biological mineralization time is longer.