The user experience of mainstream consumer groups has a guiding effect on APP design and quality improvement. By constructing an app user experience quality (Z-QoE) evaluation model for the Z-generation consumer group, the paper aims to assess the adaptability of the existing APP to the Z-generation group, and make the APP more in line with the needs of the Z-generation group. Through the analysis of the four attributes of Gen Z social, individual, network and consumption, the characteristics of the user group are obtained; based on the integration of Gen Z APP experience tendency, the APP experience quality evaluation criteria and demand elements are summarized, and Quality of Experience (Z-QoE) evaluation model of APP users facing Gen Z are constructed. Then, the fuzzy analytic hierarchy process is used to construct the judgment matrix of the Z-QoE evaluation model, and the weight value of the evaluation index is calculated according to the judgment matrix, and the obtained weight values are sorted. Based on the analysis of the characteristics and needs of the Gen Z user groups, the app quality evaluation criteria are derived, and the Z-QoE evaluation model with refined weights and better reflecting the needs of the Z generation is established. Finally, taking mobile music apps as an example, the effectiveness of the model is verified.