The invention relates to a vehicle-mounted type ink distributing device of an ink barrel. The vehicle-mounted type ink distributing device comprises an ink storage barrel, wherein a vibrating spring is arranged in the ink storage barrel, vibrating plates are arranged at the lower part of the vibrating spring, and a feeding opening is formed in the end part of the ink storage barrel; support plates are arranged at the end part of the ink storage barrel, a limit plate is arranged between the end parts of the support plates, the upper end of the vibrating spring is connected with the limit plate, and a pull ring is arranged on the limit plate; and a diluent storage tank is arranged on the outer side wall of the end part of the ink storage barrel, a diluent delivery pump is arranged between the diluent storage tank and the ink storage barrel, and a filter net is arranged in the diluent storage tank. A diluent can be conveniently poured in through the diluent storage tank and conveniently delivered into the ink storage barrel through the diluent delivery pump. A user can pull the limit plate through the pull ring and control the vibrating spring via the limit plate to realize vibration, thus conveniently controlling the vibrating plates to realize vibration and conveniently carrying out ink distribution in a vibration manner. The ink distributing efficiency is greatly improved.