This study aims to evaluate the influence of Plant Growth Promoting Rhizobacteria (PGPR) on chili pepper (Capsicum frutescens) in monoculture and intercropping systems. PGPR are microorganisms that can enhance plant growth through nitrogen fixation, phosphate solubilization, and hormone production. The study was conducted at the Fruit and Vegetable Garden in Kampung Pelangi, Malang, using a nested design with two factors: PGPR concentration (0, 10, 20, and 30 ml/l) and planting system (monoculture and intercropping with papaya). The results showed that monoculture systems and increased PGPR concentrations significantly improved plant height, leaf number, leaf area, crop growth rate, fruit number, fruit weight, and yield. Monoculture with a PGPR concentration of 30 ml/l produced the best growth and yield. These findings suggest that PGPR application and monoculture planting systems can significantly enhance chili pepper productivity.