Mentha longifoliais a valuable medicinal and aromatic plant that belongs toLamiaceaefamily. This study looked at the antibacterial effects ofM. longifoliaessential oil and pulegone in edible coatings made of chitosan and alginate on the growth ofStaphylococcus aureus,Listeria monocytogenes, andEscherichia coliin cheese. For this purpose, first fresh mint plant was collected from the cold region of Jiroft in Kerman province. Plant samples were dried in the shade at ambient temperature, and essential oil was prepared using Clevenger. The essential oil was analyzed by gas chromatography using mass spectrometric (GC/MS) detection. The major composition ofM. longifoliaoil was pulegone (26.07%), piperitone oxide (19.72%), and piperitone (11.88%). The results showed that addingM. longifoliaessential oils and pulegone to edible coatings significantly reduced the growth of bacteria during storage. The bacterial population decreased by increasing the concentration of chitosan,M. longifolia, and pulegone in edible coatings. When the effects of pulegone andM. longifoliaessential oils on bacteria were compared, it was found that pulegone had a stronger effect on bacterial population reduction. Coating treatments showed more antibacterial activity onE. colithan other bacteria. In general, the results of this research showed that alginate and chitosan coatings along withM. longifoliaessential oil and its active ingredient pulegone had antibacterial effects againstS. aureus,L. monocytogenes, andE. coliin cheese.