Dobropilla belongs to those cities in Donbas where trolleybus appeared relatively long ago, in 1968. The reason was quite typical - to link the coal mine „Almazna" (then im. RSCA) with town. This also predetermined that trolleybus was constructed and then operated by cola mine. In the best times (starting from 1979) two routes operated in town: № 1 (Szachta im. RSCA - prosp. Peremohy) and № 2 (RMZ - (Szachta "Dobropilska"), serviced by 7 (among them two in rush times only) and 3 trolleybuses respectively. In 2004 when there were only few operating trolleybuses route 2 was closed, later on attempts were to make one route out of two (Szachta „Almazna" - RMZ) but inequality of number of passengers in town center and near RMZ  left Dobropilla with only one route (Szachta „Almazna" - prosp. Peremohy) with 1 or 2 trolleybuses in operation depending on situation within the company. The electrical network of route 2 is kept alive. Trolleybuses in Dobropilla have pretty unusual schedule - they operate almost 24 hours with a short break between 1-15 and 3-10.

In 1999 when trolleybus was subordinated to motor-transport depot all trolleybuses changed their numbers into 3-digit without any special system. Most of ЗиУ-9 built in 1989 became 5хх, while those of 1987 are now 6хх. Since trolleybus # 705 came later it now has its original number.

There is no classical operating company as trolleybus is subordinated to "Dobropilvuhilla" company.