Geocell is a new type of geosynthetic material with a three-dimensional mesh structure. The flexible structural system composed of this material has excellent characteristics such as high overall strength, high stiffness, corrosion resistance, and aging resistance. Compared with structural layers composed of other geotechnical materials, the rebound modulus and deformation modulus can be increased by more than twice, and the foundation bearing capacity is greater than 180kPa. Compared with existing reinforcement methods, the total project cost can be reduced by 10-15%. And it can achieve the ecological restoration function along the highway, achieving the purpose of greening and beautifying the environment.