The invention belongs to the field of deep learning, and relates to a process automatic decision-making and reasoning method and device, computer equipment and a storage medium, and the method comprises the steps: constructing a part production process knowledge base model; constructing a three-level information model of part information, process knowledge and equipment information, integrating production data and constructing a process time sequence knowledge graph; extracting process knowledge features from the process time sequence knowledge graph; splitting the production task by combining an automatic decision-making model based on the process knowledge features, extracting the spatial features of the subtasks, and retrieving the process knowledge meeting the spatial features and the time sequence requirements in the part production process knowledge base for process decision-making; a partially observable Markov decision process algorithm is adopted to define a process time sequence knowledge graph as an environment, and process reasoning is carried out. Reasoning is carried out on an unknown production process, and after a reasoning path is obtained, manual verification is carried out, and then the reasoning path is updated to the process time sequence knowledge graph, so that process knowledge is more perfect.