Abstract: In order to evaluate the behavior safety level of miner scientifically and reasonably, according to SHELL model, the evaluation index system of behavior safety level is established from five aspects: human factor, S-L interface factor, H-L interface factor, E-L interface factor and L-L interface factor. According to the randomness and fuzziness of behavior safety level evaluation, the cloud matter-element theory is introduced to build the evaluation model. The model is applied to evaluate the behavior safety level of C coal mine workers, the evaluation grade of behavior safety level of C coal mine underground workers is grade II, and the evaluation results are basically consistent with the actual situation of the enterprise, which shows that the model can be used in the actual evaluation work, and it is scientific.