The influence of temperature on the consolidation creep characteristics of high liquid limit soils is revealed from the perspective of bound water, and the reasonable filling parts of high liquid limit soils in roadbeds are determined based on the influence of temperature. In this paper, three kinds of high-liquid-limit soils are selected as research objects, and one kind of low-liquid-limit soil is used as a comparative sample, volumetric flask test and consolidation creep test with step-by-step loading at different temperatures are carried out, and numerical simulation of temperature field of embankment with high-liquid-limit soils and discussion on the economic feasibility of high-liquid-limit soil filling are also carried out. The results show that compared with 20 ℃, the creep deformation of high-liquid-limit soil at 35 ℃ and 45 ℃ increased by 4.5-21.1% and 13.6-30.8%, respectively, while the growth of low-liquid-limit soil was 1.5% and 2.2%, respectively, and the compression index and the coefficient of sub-consolidation of high-liquid-limit soil increased with the temperature, and the pore ratio decreased with the temperature, while the low-liquid-limit soil was basically unaffected by the temperature. The pore ratio decreases with increasing temperature, while the low liquid limit soil is basically not affected by temperature. The higher the content of hydrophilic clay minerals in the soil, the higher the content of adsorbed bound water, which was 38.3%, 26.8%, 25.9% and 13.3% in the order. The increase in temperature promotes the conversion of adsorbed bound water into free water in the high liquid limit soil, which reduces the water viscosity in the soil, thus affecting the consolidation creep deformation of the soil body. Numerical simulation results show that the temperature of the lower embankment is below 35 ℃, and the high liquid limit soil can be used as embankment fill in this temperature range. The research results can provide a basis for the rational utilization of high liquid limit soil fill in the hot and humid areas in the south of China under the background of temperature.