A kind of fishline counter weight construction,The son of system's connection one fishing tackle of what,Between female fishline,Its creative feature fishline counter weight construction described in what includes a connecting rod,The two end system of connecting rod is provided with shackle; An at least counterweight,The central perforation for being formed with a vertical communication is defined for preset ring body kenel; One side to profile groove,It opens up the lateral wall of what counterweight and is connected to the central perforation; First screw part,Can at least it be arranged in the central perforation of the what counterweight; Second screw part,The what connecting rod periphery partial section can be set and with connecting rod in integral type or detachable structure kenel,And with the first screw part matching relationship that male and female screws togather each other,It constitutes the counterweight and is caught in connecting rod Hou by the lateral profile groove,Can vertically move and make first,The contact of second screw part,It is multiple make first using rotation counterweight,Second screw part screws togather limit,And then the firm limit what connecting rod of counterweight is reached into anticreep and easy what changes simultaneously effect.一種釣線配重結構,係連結於一釣具之子、母釣線間,其創作特點在於所述釣線配重結構包括一連結桿,該連結桿二端係設置有鉤環;至少一配重件,為預定環體型態而界定形成有一縱向連通之中央穿孔;一側向剖槽,開設於配重件之外側壁且連通該中央穿孔;第一螺合部,至少能設置於該配重件之中央穿孔內;第二螺合部,能設置於該連結桿外周局部區段而與連結桿呈一體式或可分離式之結構型態,並與第一螺合部互為公母螺合之配合關係,構成該配重件藉由該側向剖槽卡入連結桿後,能縱向移動而使第一、第二螺合部接觸,復利用轉動配重件而使第一、第二螺合部螺合限位,進而將配重件穩固限位於連結桿而達到防脫且同時易於拆換之效果。