Abdallah Khan was born in c. 1770 and received his apprenticeship in the royal workshops, working in a group of artists (naqqashan-e naqqashkhane-ye homayun).

[1] Following his appointment, all of the groups working in the royal workshops, such as the painters (naqqashan), architects (me'maran), engineers (mohandisan), enamelers (minakaran), carpenters (najjaran), lapidaries/sculptors (hajjaran), potters (fakhkharan), glass-cutters (shishe-baran), smiths (haddadan), janitors (saraydaran), gardeners (baghbanan), canal diggers (moqanniyan) and candle makers (shamme'an), reported to Abdallah Khan as their supervisor.

[3] In Tehran in 1812, Abdallah Khan met with English orientalist William Price, a member of the Gore Ouseley mission to Iran.

[5] Abdallah Khan's best-known work is a mural covering three internal walls of the audience hall at Negarestan Palace, Tehran.

[6][5] The original work was later lost but a full-scale replica was made in 1904 during the reign of Mozaffar ad-Din Shah Qajar (r. 1896–1907), and is currently stored in the Persian Foreign Office.

He painted several full-length portraits of Fath-Ali Shah Qajar, including one that is in the possession of the Victoria and Albert Museum and depicts him wearing a red robe and a bejeweled Astrakhan cap.