In order to study the cardiorespiratory endurance test and training method under the structural equation model, a structural equation model built in conjunction with ANOS7.0 is proposed. This method uses confirmatory factor analysis and analyzes the influencing factors of motor skills. Studies indicate that df = 173 > 0 of the structural equation model, to over-identify the model, the absolute value of the standardized coefficient value is 0.257 to 0.758, less than 0.95, and there is no value with a large estimated standard deviation. The model did not violate the estimation phenomenon. Among the factors affecting motor skills, cardiopulmonary function, and muscle endurance, the weight of the back muscles is less than 0.4, the power of coordination and explosive power of lower limbs is greater than 0.6, and limb muscle strength, body mass, and the stretch and flexibility of the muscles have a greater weight on basketball skills than 0.5. The structural equation model is an over-recognition model. The absolute value of the standardized coefficient value does not have a value with an excessively large standard deviation estimate, and the model does not violate the estimate.