Disabled students physical health is wish of numerous disabled students’ parents, due to disabled students will suffer discrimination in society, so their normal physical exercises are hard to ensure to go smoothly. To physical educators, they are difficult to judge by eyes whether on earth disabled students have hearing problems or speaking problems. In order to convenient for physical educators working smoothly, the paper specially establishes judgment model. At first, on the basis of referencing lots of documents, the paper utilizes principal component analysis method to divide eight sports events that disabled students may prefer into two items, one is running event, and the other is comprehensive event. And then adopt hierarchical investigation form to extract deaf-mute students and speech-impaired students’ evaluation status on the two sports events, and regard the investigation result as feature values. Random sample six disabled students as judged objects, utilize BP neural network model algorithm, use Matlab software to program the calculation process. It gets result; result by investigation is consistent to practical status, so that it verifies the model’s feasibility.