This study extensively explores the magnetic features of bi-borophene nanolattices using Monte Carlo method. After conducting an investigation into the ground-state phase diagrams, it has been discovered that there are stable configurations present across diverse parameters. Sublattices MS and Mσ exhibit complex behaviors, resulting in the identification of six magnetization plateaus. Discerning critical fields (hc1, hc2) and saturation field (hS) underscores the effect of exchange coupling interaction, temperature, crystal, and external magnetic field. The study's outcomes can have implications for various fields, including materials science, nanotechnology, and low-temperature applications.