The Metro itself consists of 4 numbered lines, covering 116.5 kilometres (72.4 mi) of route and serving 114 stations.

Including the BGL and the Donghae Line, the network covers 205.6 kilometres (127.8 mi) of route and serving 158 stations.

Two years later, in 1981, construction began on the first phase, between Nopo-Dong (now Nopo) and Beomnaegol, which was finished in July 1985.

On 10 January 2003, Line 2 was extended 8 kilometres (5.0 mi) to the current terminus of Yangsan, but with only three of the originally planned seven stations in operation.

Opening was delayed many times, but the Line 3 finally started service on 28 November 2005, with an 18.3-kilometre (11.4 mi) long stretch[4] serving 17 stations.

Following the "Daegu Subway Fire" in 2003, it was decided during construction to install screen doors to all station platforms on Line 3.

Using automated guideway transit technology and extending from Minam to Anpyeong, Line 4 includes 14 stations and 12.7 kilometres (7.9 mi) of route.

Tickets are to be kept since they are required to leave the station once reaching destination, and getting caught "jumping the gate" will result in a hefty fine.

The passes are equipped with a microchip and are scanned by laying them against sensor plates at the entrance and exit of stations.

All type of passes can have credit added to them in any station at the "Automatic Charge Machine" (교통카드 자동 보충기); the instructions are available in both English and Korean.

The passes can also be used to pay for bus fares and for purchases on specially equipped vending machines throughout the city.

The current S-DMB transmission allow subscriber to receive television and radio reception on hand-held device such as cell-phone.

With an investment of 11 billion won TU Media installed 530 signal emitters to provide seamless reception in the entire underground system.