This project presents a comprehensive study and analysis of reinforced earth walls (REW) and reinforced cement concrete (RCC) retaining walls using the advanced geotechnical software PLAXIS. The primary objective is to evaluate the structural behavior, stability, and performance of these two types of retaining walls under various loading conditions. In this study, a series of numerical simulations were conducted using PLAXIS, which is based on finite element analysis (FEA). The results of the analysis provided valuable insights into the relative advantages and disadvantages of REWs and RCC retaining walls in terms of cost, construction complexity, and performance under varying site conditions. The findings suggest that while REWs offer a cost-effective and efficient solution for many projects, RCC walls provide enhanced structural stability for high-load applications. The study also highlights the effectiveness of PLAXIS in simulating complex soil-structure interactions, aiding engineers in making informed design decisions for optimal wall selection based on site-specific conditions.