The invention discloses a remote supervision relationship extraction method based on multiple tasks and multiple examples, which is characterized in that remote supervision relationship extraction iscarried out by adopting a multi-task and multi-example learning architecture, Word2vec word vector pre-training and a multi-example sentence-level attention mechanism method; the method specifically comprises the steps of data preprocessing, input representation, abstract semantic representation, entity type representation, multi-task multi-example relationship extraction and the like. Compared with the prior art, the method is simple and convenient, the problems of noise, insufficient training and data class imbalance are effectively solved, the influence of noise on classification is effectively reduced, the contribution of real sentences to classification is improved, and the method has a certain practical value for relieving the influence of noise and NA on classification.