Fireball monitoring network is the main equipment for monitoring impact from small-size near-Earth objects (NEOs) and determining meteorite fall locations. In this paper, a monitoring system using a multi-station distributed all-sky video camera network is proposed and a regional prototype system has been constructed in Jiangsu and surrounding areas. The main processes of fireball monitoring were implemented, including network control, video capturing, data processing, trajectory determination, and orbit calculation. After running for 1yr, the results show that the limiting apparent magnitude $-1.0$ for meteors in the video and the absolute magnitude exhaustive detection regime can reach around $-2.5$. The flux of fireballs is found to be 2.68x10^-7 km^-2 .h^-1. The percentages of streams and sporadic meteors are 46% and 54%, respectively, and the fraction of cometary orbits equals 72.9%, while for asteroidal-type it is 27.1%. The statistical results are close to those of the international meteor monitoring networks, which verified the monitoring capability of the network system in practical operation.