The invention relates to a tension detection control device for a center-based stranding machine, comprising a pay-off spool (1). A cable core (2) is twined and connected on the pay-off spool, a range sensor (5) that is in induction fit with the cable core is arranged below the pay-off spool, one side of the pay-off spool is provided with a brake (7), a proportional pressure valve (8) and a solenoid valve (9) which are mounted through a brake support (6) and connected by a pipeline, and the solenoid valve is connected with an air source (12) through a third pipeline (12); and the tension detection control device further comprises a control device (14) connected with the range sensor and the solenoid valve. The tension detection control device has the advantages that the device is used for detecting the match degree of the change, from a full plate to a shallow plate, of a wire conductor stored in the pay-off spool and the line outgoing speed of a complete machine, matches up with an air pressure disc brake through an inductor detection feedback mode in the process of releasing the conductive cable core, and automatically adjusts the stability of line releasing tension of the wire conductor stored in the pay-off spool, so that the cable releasing tension is guaranteed to be uniform and stable, and the cable stranding quality is improved.