A cell culture control system comprising: a controller configured to control parameters of a culture fluid which exists in a processor in accordance with a control value which is preliminarily set; a sensor configured to detect a cell density, a concentration value of metabolic substances, and a concentration value of nutrient sources in the culture fluid which exists in the processor by using near-infrared spectroscopy; a calculator configured to calculate a specific rate of the cell density, a specific rate of the concentration value of the metabolic substances, and a specific rate of the concentration value of the nutrient sources based on the cell density, the concentration value of the metabolic substances, and the concentration value of the nutrient sources detected by the sensor; a generator configured to generate time-series data in accordance with the specific rates calculated by the calculator; an extractor which comprises a simulator configured to calculate a predicted value of the time-series data, the extractor being configured to extract a characteristic point of the time-series data or a characteristic point of the predicted value; and a control value setter configured to change the control value in accordance with the characteristic point extracted by the extractor, wherein the control value setter is configured to determine an adding amount of additives at a timing when the extractor outputs the characteristic point, and wherein the controller is configured to make a control unit, which is disposed between a supply source of the additives and the processor, perform a supply operation and a block operation in accordance with the adding amount of the additives determined by the control value setter. a controller configured to control parameters of a culture fluid which exists in a processor in accordance with a control value which is preliminarily set; a sensor configured to detect a cell density, a concentration value of metabolic substances, and a concentration value of nutrient sources in the culture fluid which exists in the processor by using near-infrared spectroscopy; a calculator configured to calculate a specific rate of the cell density, a specific rate of the concentration value of the metabolic substances, and a specific rate of the concentration value of the nutrient sources based on the cell density, the concentration value of the metabolic substances, and the concentration value of the nutrient sources detected by the sensor; a generator configured to generate time-series data in accordance with the specific rates calculated by the calculator; an extractor which comprises a simulator configured to calculate a predicted value of the time-series data, the extractor being configured to extract a characteristic point of the time-series data or a characteristic point of the predicted value; and a control value setter configured to change the control value in accordance with the characteristic point extracted by the extractor, wherein the control value setter is configured to determine an adding amount of additives at a timing when the extractor outputs the characteristic point, and wherein the controller is configured to make a control unit, which is disposed between a supply source of the additives and the processor, perform a supply operation and a block operation in accordance with the adding amount of the additives determined by the control value setter.