Background: Among various cancers, primary liver cancer is the seventh most diagnosed malignancy and is the second most prevalent contributor to cancer-causing deaths. During conventional treatment, the recurrence of disease, low drug inefficacy, and severe side effects are the main limitations. Recently, natural anticancer medicines from the Middle East, Korea, China, Europe, North America, and India have attracted a lot of interest due to their low side effects and better remedial properties. The current study investigated the antioxidative and anticancer effects of ethanolic (BME) and n-hexane (BMH) extracts of B. monnieri (L.) Wettst. Methods: In the current study, phytochemical profiling was done using gas chromatography-mass spectrometry (GC-MS) analysis. The antioxidant potential was measured using DPPH, nitric oxide, superoxide anion, and hydrogen peroxide assays, while the cell viability and apoptotic effect were measured by MTT, crystal violet, and annexin V/PI protocols, respectively. Results: Higher concentrations of total phenolic contents (274.92±3.52 mgGAE/g), total flavonoid contents (141.99±4.14 mgQE/g) and tannins (55.49±4.63 mgTAE/g) were observed in BME extract with strong antioxidant potential than BMH extract. Also, BME extract showed higher cytotoxicity with less IC₅₀ value (24.70 μg/mL) and a lower percentage of cell viability, while the same extract exhibited 58.65% apoptosis against HepG2 cells in comparison to cisplatin and BMH extract. Furthermore, Spiro[(tricyclo[6.2.2.0(2,7)]dodeca-5,9-diene)-4,1’-cyclobutane]-11,2’-dione from BME extract showed the lead docking score of -8.8, -8.1 and -7.8 kcal/mol against TGF-βR1, TNF-α, and iNOS, respectively. Conclusion: In conclusion, the ethanolic extract of B. monnieri has a significant potential for becoming a potent anticancer drug that effectively treats liver damage, including HCC.