Background: Anterior ethmoidal artery is a very important artery particularly useful in frontal and ethmoid sinus surgery. Aims and objective: Identification of landmarks of AEA in the medial wall of orbit and in the lateral wall of olfactory fossae and its relationship with the presence of supraorbital cell. Methods: Retrospective study was performed in 145 direct coronal CT scan of paranasal sinus from January to November 2016. Results: Anterior ethmoidal foramen was present in almost all scan (98%). The AEA canal was present in 33% (49 scan). Supraorbital pneumatisation was present in 28% (41 scan).Conclusion: Anterior ethmoidal foramen was present in almost all coronal CT scan of PNS. There was strong relationship between presence of supraorbital cell and AEA canal appearance.