The task of Visual Relationship Detection （VRD） is to further detect the relationship between target objects on the basis of target recognition， which belongs to the key technology of visual understanding and reasoning. Due to the interaction and combination between objects， it is easy to cause the combinatorial explosion problem of relationship between objects， resulting in many entity pairs with weak correlation， which in turn makes the subsequent relationship detection recall rate low. To solve the above problems， a knowledge-guided visual relationship detection model was proposed. Firstly， visual knowledge was constructed， data analysis and statistics were carried out on entity labels and relationship labels in common visual relationship detection datasets， and the interaction co-occurrence frequency between entities and relationships was obtained as visual knowledge. Then， the constructed visual knowledge was used to optimize the combination process of entity pairs， the score of entity pairs with weak correlation decreased， while the score of entity pairs with strong correlation increased， and then the entity pairs were ranked according to their scores and the entity pairs with lower scores were deleted； the relationship score was also optimized in a knowledge-guided way for the relationship between entities， so as to improve the recall rate of the model. The effect of the proposed model was verified in the public datasets VG （Visual Genome） and VRD， respectively. In predicate classification tasks， compared with the existing model PE-Net （Prototype-based Embedding Network）， the recall rates Recall@50 and Recall@100 improved by 1.84 and 1.14 percentage points respectively in the VG dataset. Compared to Coacher， the Recall@20， Recall@50 and Recall@100 increased by 0.22， 0.32 and 0.31 percentage points respectively in the VRD dataset.
