Corrosion of underground pipelines within the oil and gas industry has the higher potential to cause structural failure and environmental contamination, necessitating an effective protection system such as Sacrificial Anode Cathodic Protection (SACP). This study aims to design and simulate a cathodic protection system using numerical simulation-based to evaluate its effectiveness in mitigating corrosion. A finite element method-based simulation was conducted to analyze the potential distribution and current density on pipelines with both linear anode configurations and a zig-zag pattern. The simulation results indicate that both configurations meet the protection criteria set by NACE SP-0169, with potential values more negative than -850 mV (vs Cu/CuSO4 RE). The zig-zag pattern exhibited a more uniform potential distribution, ranging from -1032.11 mV to -978.5 mV, compared to the linear pattern, which ranged from -1006.8 mV to -937.6 mV. However, the zig-zag configuration resulted in higher anode consumption due to increased current density (0.02 to 0.111 A/m²) compared to the linear configuration (0.02 to 0.098 A/m²). While the empirical linear pattern is simpler and requires less anode consumption, its current distribution is less optimal. In contrast, the zig-zag pattern provides more uniform and effective corrosion protection.