Abstract:[Purpose/Significance] The quantitative trend evolution model for technology forecasting is used to predict the new technologies and technology development trends of volatile organic compounds (VOCs), so as to provide technical path scheme for the field. [Method/Process] The paper extracts term set from three dimensions: technical terms, high-frequency keywords and keywords co-occurrence. The paper presents a model based on trend evolution analysis from the perspectives of new technology discovery and field technology development. The model is divided into three parts: the screening and processing of domain technology topic, the extraction of domain new technology topic and the temporal evolution of domain technology topic. [Result/Conclusion] The feasibility of the trend evolution model is verified by empirical analysis, and it is predicted that the theme of VOCs treatment technology will mainly focus on five areas:the research field of volatile organic compounds catalysis and catalyst application, the photocatalytic research field, the research field of volatile organic compounds treatment equipment and process, the research field of pollution source control and the research field of pollution source detection/monitoring.