A thorough knowledge of the root canal anatomy and its variations is essential for successful completion of the endodontic treatment. The endodontic treatment of maxillary molar with an unusual root canal morphology can be diagnostically and technically challenging. Astonishing morphology in multirooted teeth is a constant challenge for diagnosis and successful endodontic treatment. Presence of extra canals, lateral canals, apica deltas is commonly encountered. The purpose of this study was to report a clinical case of maxillary first molar with an unusual morphological variation of palatal root having two palatal canals that appears to be unite in the apical third of the root. The incidence of two palatal canals in a palatal root is quite rare and reported to be 2–5.1%. Keywords: Astonishing root canal morphology, Endodontic treatment, Two palatal canals.