Training method and device of personal loan amount evaluation model based on block chain

The invention discloses a training method and device for a personal loan amount evaluation model based on a block chain, and the method comprises the steps: enabling each training node to write the respective training information into a block chain according to a training invitation sent by a task release node; the task release node determines one of the training nodes as a central training node according to the training information of each training node, and sends a training task to the central training node, and the rest of the training nodes are used as participating training nodes; the central training node divides the training task into a plurality of training sub-tasks according to the training capability information of each participating training node, and distributes each training sub-task to the corresponding participating training node, so that each participating training node performs training; and the central training node obtains a personal loan amount evaluation model through integration. Accord