The invention relates to a thread seal tape winder, in particular to a water pipe threaded opening thread seal tape winder for road construction. With the water pipe threaded opening thread seal tapewinder for road construction of the invention adopted, winding thickness can be guaranteed, the connection of water pipes can be facilitated, and the sealing performance of the water pipes will not beinfluenced. The water pipe threaded opening thread seal tape winder for road construction comprises a handle, a protective cover and the like, wherein the handle is connected with the protective cover. According to the water pipe threaded opening thread seal tape winder for road construction of the invention, the working time of a rotating mechanism can be set according to the diameter of a waterpipe through a setting key, a one-plus key, a one-minus key and a confirmation key, and therefore, winding thickness can be guaranteed, the connection of water pipes can be facilitated, the sealing performance of the water pipes is not affected; and a centering assembly can play a role in centering, so that the device of the invention can be fixed, and therefore, a thread seal tape can be wound more orderly.