The utility model relates to an automatic hooking device, which is suitable for fixing one end of a fishing hook to a fishing line. The automatic hooking device includes a body, a rotating ring, a wire groove, and a fishing line and the like. The body includes an insertion rod for the fishing hook to be inserted. The rotation ring is centered on the plunger rod and rotates relative to the body. The rotation ring has a wire clamp. The wire slot cuts through the body and the rotating ring. The fishing line isometric auxiliary device includes at least one positioning rod, and the other end of the fishing line is positioned at the at least one positioning rod of the fishing line isometric auxiliary device, and then one end of the fishing line is passed around the fishing line. After the line groove surrounds the body, one end of the fishing line is fastened to the fishing hook by rotating the rotation ring, which can ensure that the distance between the two opposite ends of the fishing line does not change, and achieve the effect of obtaining an equal-length fishing line. .一種自動綁鉤裝置，適用於將一釣鉤的一端繫固於一釣線，該自動綁鉤裝置包含一本體、一轉動環、一線槽，及一釣線等長輔助器。該本體包括一供該釣鉤插置的插桿。該轉動環以該插桿為中心且相對於該本體轉動，該轉動環具有一夾線件。該線槽切穿該本體與該轉動環。該釣線等長輔助器包括至少一定位桿件，藉由將該釣線的另一端定位於該釣線等長輔助器的該至少一定位桿件，再將該釣線的一端繞過該線槽並環繞該本體一圈後，藉由轉動該轉動環將該釣線的一端綁固於該釣鉤，能夠確保該釣線的兩相反端的距離不變，達到便於取得等長釣線的功效。
