Abstract: In order to solve the adaptability problem of existing layer selection methods in translayer fracturing of broken and soft coalbed, a layer selection principle based on index priority evaluation is proposed, and a layer selection method based on index priority evaluation is established. The basic steps of this method are as follows. Firstly, all factors are divided into several indexes with priority. Secondly, the fuzzy comprehensive evaluation method is used to evaluate all kinds of indexes with priority. Finally, the comprehensive dessert layer in accordance with the evaluation criteria is determined. Comparison with the numerical simulation results of translayer fracturing of broken and soft coalbed, the layer selected by this method is more likely to produce the desired fracture effect than other layers, so this method can be used to guide the engineering practice of translayer fracturing of broken and soft coalbed.