One of the greatest Persian Sufi poets of the 12 th century Sanа̄’ī (d.535/1140 or 545/1150) is founder of the Sufi didactical mathnavī poem in Iran. His works exerted enormous influence upon many posterior authors in the Persian Sufi and secular poetry. However, the problem of the authorship of Sanа̄’ī concerning the short poems has been debated among the scientists during XX th century and right up to nowadays. The paper covers the history of studying of the short poems attributed to Sanа̄’ī and proposes the using of the latest computational methods in particular digital stylometry for the definition of the real authors of the short poems attributed to Sanа̄’ī.