A communication quality deterioration prediction system comprising: a first prediction unit for predicting the amount of future communication quality deterioration in a first communication section between one communication device and another communication device communicably connected to the one communication device by using a first learning model generated based on first attributes being attributes related to a cause of communication quality deterioration in the first communication section; a second prediction unit for predicting the amount of future communication quality deterioration in a second communication section that is outside the first communication section, by using a second learning model generated based on second attributes being attributes related to a cause of communication quality deterioration in the second communication section, the one communication device being located between the first communication section and the second communication section; a determination unit for determining the amount of future communication quality deterioration regarding the one communication device based on a prediction result of the first prediction unit and a prediction result of the second prediction unit; a first learning model generation unit for generating the first learning model for predicting the amount of future communication quality deterioration by using values of the first attributes and the amount of communication quality deterioration in the first communication section, as training data; and a second learning model generation unit for generating the second learning model for predicting the amount of future communication quality deterioration by using values of the second attributes and the amount of communication quality deterioration in the second communication section, as training data, wherein the first prediction unit is configured to predict the amount of future communication quality deterioration in the first communication section, the second prediction unit is configured to predict the amount of future communication quality deterioration in the second communication section, and the determination unit is configured to obtain a sum of the amount of communication quality deterioration predicted by the first prediction unit and the amount of communication quality deterioration predicted by the second prediction unit as the amount of future communication quality deterioration regarding the one communication device. a first prediction unit for predicting the amount of future communication quality deterioration in a first communication section between one communication device and another communication device communicably connected to the one communication device by using a first learning model generated based on first attributes being attributes related to a cause of communication quality deterioration in the first communication section; a second prediction unit for predicting the amount of future communication quality deterioration in a second communication section that is outside the first communication section, by using a second learning model generated based on second attributes being attributes related to a cause of communication quality deterioration in the second communication section, the one communication device being located between the first communication section and the second communication section; a determination unit for determining the amount of future communication quality deterioration regarding the one communication device based on a prediction result of the first prediction unit and a prediction result of the second prediction unit; a first learning model generation unit for generating the first learning model for predicting the amount of future communication quality deterioration by using values of the first attributes and the amount of communication quality deterioration in the first communication section, as training data; and a second learning model generation unit for generating the second learning model for predicting the amount of future communication quality deterioration by using values of the second attributes and the amount of communication quality deterioration in the second communication section, as training data, wherein the first prediction unit is configured to predict the amount of future communication quality deterioration in the first communication section, the second prediction unit is configured to predict the amount of future communication quality deterioration in the second communication section, and the determination unit is configured to obtain a sum of the amount of communication quality deterioration predicted by the first prediction unit and the amount of communication quality deterioration predicted by the second prediction unit as the amount of future communication quality deterioration regarding the one communication device.