Phaphamau junction is located in the Phaphamau satellite town near Allahabad in Uttar Pradesh.  The station comes under the jurisdiction of Northern Railways. Station code is PFM.

Phaphamau Junction is well connected to Allahabad which is at about 10 km from the city crossing the river Ganges. Tharwai, Prayag, Siwaith and Saraigopal are the nearby railway stations on the route to Allahabad. Varanasi is at about 127 km from Phaphamau city by road. Major trains running through this junction are Bundelkhand Express connecting Gwalior with Varanasi, Maharashtra Express connecting Kolhapur with Gonda, Ganga Gomati Express connecting Allahabad with Lucknow, Unchahar Express connecting Allahabad with Chandigarh, and Tribeni Express rail. Many passenger trains running between Prayag and Bareli, Lucknow and Prayag, Jaunpur and Allahabad stop at this junction. It is very well connected to Prayag, Kanpur, Jaunpur, Faizabad, and Gorakhpur.