Eight elements (S, Cd, P, K, Mg, Ca, Mo and Cr) were determined in four selected medicinal plants namely; Poupulus nigra, Ocimum basilicum, Taraxacum officinale and Convallaria maialis by using Flame Atomic Absorption Spectroscopy (FAAS). These elements has the highest concentration such as Ca (442 ppm), Mg (42 ppm), P (14.24 ppm) and Cd (14.4 ppm). The highest concentration of K (842 ppm) and S (1428 ppm) was found in Taraxacum afficincale. The highest concentration of Cr (13.10 ppm) and Mo (9.2 ppm) was found in Poupulus nigra. Such information could be helpful in standardization of herbal products since the Saudian medicinal plants play an important role in maintenance of human health.