The invention relates to a science and technology project material integrity assessment decision model training method. The method comprises the following steps of S1, formulating a structured or unstructured assessment rule; s2, establishing an evaluation rule tree based on a structured or unstructured evaluation rule; and S3, obtaining a training sample, and training the training sample according to the evaluation rule tree to obtain a project establishment evaluation decision model. The decision model for self-adaptive project approval examination is generated through the intelligent machine training method, the project approval examination efficiency is improved, the manual examination pressure is reduced, and the implementation progress of the science and technology plan is accelerated.