Fritillaria imperialis needs 2-3 years to regenerate from seeds, which makes its production quite challenging. In this study, effects of three concentrations of 6-Benzylaminopurine (BAP) (0.00, 0.10 and 0.15 mg/L) and three different amounts (0.0, 3.0 and 3.5 g/L) of activated carbon (AC) on the growth of F. imperialis plantlets in vitro were determined. The auxins were at similar concentration (0.01 mg/L of NAA and 0.01 mg/L of IAA) for all treatments. It has been found that the size and number of bulblets, as well as root and shoot numbers in regenerated plantlets were increased significantly (p<0.05) by adding 3.5 g/L of AC in culture medium supplemented with 0.10 mg/L of BAP. Moreover, addition of AC significantly reduced the length of roots in all doses studied (p<0.05). The supreme concentration of BAP (0.15 mg/L) decreased the bulblet number in all treatments, however, when supplemented with 3.5 g/L of AC, it was found to raise all the values measured (p<0.05). Overall, the best growth of the plant parts from callus were achieved with the highest concentration of AC and 1.5 mg/L of BAP.