An energy storage battery pack monitoring and dynamic equalization apparatus is characterized in that: the energy storage battery pack monitoring and dynamic equalization apparatus is composed an inter-energy-storage-battery-pack equalization unit A (1) and an intra-energy-storage-battery-string equalization unit B (2). The inter-energy storage battery pack equalization unit A (1) and the intra-energy storage battery string equalization unit B (2) employ communication interfaces to carry out information exchange, and electrical series connection is carried out through equalization interfaces. The apparatus can automatically acquires information such as voltages, temperatures and alarms of energy storage batteries, so that dynamic monitoring of an energy storage battery string can be realized; and according to index states of the energy storage batteries, battery electric quantities among different pack strings are equalized dynamically; and especially, electric quantity equalization problems during the existence of differences of energy storage battery monomer original states are solved relatively well, and the energy storage battery pack monitoring and dynamic equalization apparatus has a good application prospect.