The invention provides a hull external-hanging type anti-storm tungsten alloy compensating counterweight for a sailing boat. The compensating counterweight body is made from high gravity tungsten alloy, wherein weight of briquette tungsten alloy is between 0.02 and 9.3 tons; and the weight of sphere tungsten alloy is between 0.0 and 2.0 tons. The streamline type compensating counterweight comprises a streamline type briquette metal inlaid core, wherein the core is inlaid with a plurality of tungsten alloy sections in longitudinal axis direction; each tungsten alloy section is inlaid with a plurality of tungsten alloy briquettes; the inlaying mode of each tungsten alloy briquette adopts a connection mode by tenon and mortise inserting; the inlaying mode of each tungsten alloy section adopts the connection mode by bolt blocking and/or the connection mode by tenon and mortise inserting; contact surfaces of two adjacent tungsten alloy sections are provided with a machining groove respectively, and are coated with metal general-purpose adhesive for adhering; the surface of the briquette metal inlaid core is coated with a tungsten alloy sphere layer consisting of a plurality of tungstenalloy spheres, and a carbon fiber layer from the inside to the outside. The tungsten alloy compensating counterweight has a simple structure, and is convenient for manufacture; the tungsten alloy briquettes have excellent connecting effect, so that global impact resistance of the compensating counterweight is ensured; the compensating counterweight can resist great storms on the sea, and keep thesailing boat steady without damage.