He was greeted at the airport by Iranian Minister of Industry, Mines, and Trade Mohammad Reza Nematzadeh.
Masum, who is visiting Iran at the invitation of Iranian President Hassan Rouhani, will be formally received by his Iranian counterpart at the Saadabad Palace, northern Tehran, on Wednesday.
Last week, in a meeting in Baghdad with the Iranian ambassador, Masum voiced Iraq's enthusiasm for using Iran's experiences in scientific and technological fields and other spheres.
Earlier in January, Iranian First Vice-President Eshaq Jahangiri had reiterated the country's strong support for Iraq, saying that the Islamic Republic is prepared to share its experiences with the Arab country in various areas.