Access

The station has two entrances:

• entrance 1 - Shopping Center, consisting of a fixed staircase decorated with a mast with a yellow M inscribed in a circle, emerging under two road ramps connecting the Boulevard Périphérique to the A3 autoroute, to the right of the Bel Est commercial center;
• entrance 2 RATP Bus Station, consisting of a fixed staircase lined with an escalator allowing only the exit, located slightly further south, opposite the said bus station. Although the station was built in the 1970s, the sides of the exchange room are covered with traditional bevelled white tiles.

Station layout

Line 3 platforms	Island platform, doors will open on the right
	Westbound	← toward Pont de Levallois – Bécon (Porte de Bagnolet)
	Eastbound	→ Alighting passengers only →
	Island platform, doors will open on the right

Platforms

Gallieni is a station of a particular configuration. It has four tracks framing two island platforms. The trains arrive on the central tracks and depart from the central north and north side tracks, the south side track used for the train depot. The walls are vertical, as are the pillars, and support a horizontal ceiling covered with a black fire-resistant flocking. The decoration is typical of the 1970s: the bevelled ceramic tiles, placed vertically and aligned, are beige in colour on the walls (a colour that can be found at Porte de Bagnolet on the same line and at Kléber on line 6) and white on the pillars, the upper part of the latter being coated and painted white. The advertising frames are metallic and the name of the station, inscribed on enamelled plates, is in Helvetica font instead of the usual Parisine typography, a peculiarity that the station only shares with Place d'Italie on line 6 and Porte de Versailles on line 12. The Motte style seats are yellow.

Bus connections

The station has a bus station served by the RATP Bus Network, lines 76, 102, 122, 221, 318 and 351.