The invention discloses a police heat-preservation meal delivering cart with a steam generator. The police heat-preservation meal delivering cart with the steam generator comprises a carriage, a heat-preservation layer, frames, meal boxes, storage barrels, barrel covers, a pool, electrical heating rings and relief valves. The carriage is a closed box body made from a stainless steel material, wherein the carriage comprises a box door; the outer surface of the carriage is coated with the heat preservation layer, the frames are the horizontal frames and are connected inside the carriage, the storage barrels are fixedly connected in the frames, the multiple storage barrels are fixedly connected on each frame, the meal boxes are put into the storage barrels, the barrel covers are connected to the tops of the storage barrels through clamping openings, the pool is arranged at the bottom of the carriage, the electrical heating rings are arranged in the pool, the relief valves are arranged at the tops of the carriage, springs are fixedly connected to the inner sides of the barrel covers, pressing plates are fixedly connected to the lower ends of the springs, and the lower ends of the storage barrels are conical. The police heat-preservation meal delivering cart with the steam generator has the advantages of being simple in structure, reasonable in design, good in practical effect, convenient to use, easy to apply and popularize and the like.