The invention provides a deep 
reinforcement learning interactive recommendation 
system and method based on knowledge enhancement, and relates to the technical field of recommendation. The 
system comprises a 
data acquisition and cleaning module, an environment simulator construction module, a 
knowledge graph construction module, a graph 
convolution module, a 
user state representation module, a strategy 
network module and a 
value network module. According to the method, rich 
semantic information in a 
knowledge graph is combined, a graph convolutional 
network structure is utilized, embedded representation of adjacent entities is propagated recursively along high-order 
connectivity, a graph 
attention network thought is adopted, item representation is enhanced by utilizing the rich 
semantic information in the 
knowledge graph, and meanwhile, a user-item 
bipartite graph is fused, so that the method is more efficient and efficient. The potential relationship is fully mined from collective user behaviors, so that the dynamic preference of the user is accurately captured, and the optimal recommendation strategy is autonomously learned by using deep 
reinforcement learning, so that the recommendation accuracy is improved.