IndustrialSconsumers canSachieve betterSenergySutilization effect with characteristics ofSa highSloading rate,Sa small peak valley difference,Sand a adjustable nonproductive capacity by allocatingSdistributed generation and energy storageSdevices.SIn order to solve theSoptimal energy management ofSlarge industrial consumers, this paper proposes the energy optimization strategy of large industrial consumersSbased on 0-1 knapsack problem solution. Firstly,Sit establishes the optimizationSstrategy 0-1 knapsack model ofSlarge industry consumers. Secondly,Sit puts forward theSoptimizationSalgorithmSprocess toS0-1 knapsack problemSwith large industrialSconsumers. Finally,Sit verifies the feasibility ofS0-1 knapsack algorithm through case studies and provides a reference for the energy management of large industrialSconsumers in China.