Qusar is the capital of Qusar Rayon, Azerbaijan. Qusar is located in foothills of Greater Caucasus, over the Qusarchay River, 35 kilometers southwest from Khudat railway station and 180 km from Baku.

The economy of Qusar is partially agricultural, partially tourist based, with some industries in operation. There are tinned food, milk and asphalt factories in the city.

Qusar is home to Shahdag Winter Complex, the largest ski resort in Azerbaijan.

The local history museum was established in 1980 and moved into its current building with an area of 1652 sq.m. in 1982. There are 3700 exhibits in the museum.

The Qusar State Art Gallery opened in 1986 in Hil village of Qusar raion was moved to Qusar city in 1998 . 152 works of Azerbaijani artists, including 111 paintings, 34 graphic and 7 sculptural works are on display in the gallery.

In 1998, the State Drama Theatre of Lezgins was opened in Qusar.

Heydar Aliyev Center was built in Heydar Aliyev Memorial Complex in 2012 with the aim of organizing different events and involving young people in various career and personal development activities. The Center features a memorial museum, a library, a reading hall, different conference rooms, and dance, carpet-weaving training centers.

Qusar has plenty of parks and gardens, mostly well maintained. The Nariman Narimanov Park is the most scenic park in the town.