The invention particularly relates to a fabric-based flexible control system. It includes a flexible sensor, and a controller. The controller is connected to a display device with a display. The fabric includes a flexible substrate, a graphene film layer, and the graphene conductive paste is composed of a graphene solution and a water-soluble polyurethane solution in a certain proportion. Prepared after mixing, the graphene conductive paste is a solution with a graphene / polyurethane effective content ratio of 1%-6%; after the flexible sensor detects the detection signal of the pressure or tensile force acting on the fabric, the detection signal is sent to the controller, the controller performs calculation after receiving the detection signal, and sends the calculated required data to the display device. A fabric-based flexible control method is also included. The control system of the present invention can be applied to the field of monitoring human physiological activities, especially to monitor the daily physiological activities of patients, children and the elderly; and has high reliability, good real-time responsiveness, and high monitoring accuracy.