Abstract: A fishing line lock device or line attachment device which includes a shaft with a coil member extending from the upper end of the shaft, an anchor member attached to the second end of the shaft, and a sleeve with an upper tapered end, the sleeve enveloping the shaft and coil. The sleeve is secured in position by frictional or threaded engagement between the coil and an inner surface of the sleeve. The sleeve is made from or weighted with a heavy material to cause the device to sink in water. The coil defines an axial aperture adapted to receive a portion of fishing line which is wound into engagement therewith. In a preferred embodiment, the anchor member includes a ring member extending from the second end of the shaft. The ring also serves as an attachment point for standard straight line lures. In an alternative embodiment, the ring is replaced by first and second wire members which extend from the second end of the shaft.