PROBLEM TO BE SOLVED: To provide a squid fishing sinker for raising a sinker sinking speed and for preventing a spin at a sinking time in accordance with the speed-up of a squid fishing device, and a squid fishing device having the sinker disposed at the leading end of a fishing line.SOLUTION: A sinker is formed into a tapering long shape as a whole, and the whole outer circumference of a sinker body 2 having a generally circular shape in a transverse section continues to a tip part having a small arcuate shape and has a stream line shape upward. A plurality of groove strips 3 continuing in the longitudinal direction are formed in the outer circumference of the sinker body 2.COPYRIGHT: (C)2014,JPO&INPIT【課題】イカ釣り機のスピード化に伴い、錘が沈む速度を上げ、また、沈む時の回転を防ぐようにした、イカ釣り用錘及び該錘を釣り糸の先端に設けたイカ釣り機を提供する。【解決手段】錘は、全体として先細縦長形状とされ、横断面形状が略円形状とされた錘本体2の全外周面が、小円弧状とされた先端部分に連続して上方向に流線形状とされ、該錘本体2の外周には、縦方向に連続する複数の溝条3を形成した。【選択図】 図1