The utility model provides a sea cable coiling test device, relates to extra large cable test device. The test result of present extra large cable coiling testing machine is inaccurate, and experimentation cost is high, and intensity of labour is big, and the transmission stationarity is poor. The utility model discloses a large -scale truss frame, left coiling dish, right coiling dish, cloth cable machine, hoist engine, control room, controller in the control room, large -scale truss frame include first, second, third stand, crossbeam, be equipped with hoist engine and cloth cable machine on the crossbeam, on the intermediate position of crossbeam was located to cloth cable machine, the hoist engine was located the right -hand member of crossbeam, and left coiling dish, right coiling dish are located the crossbeam below, are equipped with leading rail on the crossbeam, and the left and right sides of cloth cable machine is equipped with left lower guideway, right lower guideway respectively, left side coiling dish, right coiling dish all are equipped with a plurality of endocentric rails, and two rails are the spacing dish of a set of formation coiling. This technical scheme reduces intensity of labour, and the process is controllable, reduces misoperation, further improves the accuracy of data.