The utility model relates to a field is angled in the sea, especially relates to an it is cursory that angle with duckbilled clamp in sea. It is cursory that angle with duckbilled clamp in sea includes upper portion duckbilled clamp, lower part duckbilled clamp, connecting device, thread jamming plate. Upper portion duckbilled clamp comprises last clamp and cursory, the hydrophilic rubber layer of the cone of rigid coupling on last clamp, thread jamming plate slot, lower part duckbilled clamp by clamp down and rigid coupling under in the balancing weight on the clamp constitute, connecting device detains pivot, nut, connecting seat by the spiral shell and constitutes, thread jamming plate installs on the thread jamming plate slot, connecting seat rigid coupling in last clamp and lower clamp middle part, and the upper portion duckbilled presss from both sides to press from both sides with the lower part duckbilled and articulates through connecting device, forms duckbill's clip after articulated. The utility model discloses with thread, plummet, fishhook, the cooperation of cotton line knot, once survey at the end fast through jettisoninging, receive and release finishing of line to lay thread jamming plate and swim the sea and angle the bottom fish under the unchangeable circumstances of group, labour saving and time saving, work efficiency is high.