Underwater recyclable position-indicating delay cable cutting device

The invention provides an underwater recyclable position-indicating delay cable cutting device, belongs to the field of underwater equipment and aims to solve a problem of environmental pollution caused after an existing underwater cable cutting device is used. By arranging the base body, the balance weight body, the control rod, the annular coloring agent box, the buoyancy body, the cutting knife, the dissolving block, the first spring, the second spring, the third spring and other structures, the pure mechanical cable cutting device is provided, and a problem of environmental pollution caused by the fact that a battery is left in water when underwater cables are cut through the pure mechanical cable cutting device is solved. The device is simple to operate and easy to maintain, and is suitable for underwater cable cutting lifesaving equipment, underwater cable cutting floating recovery equipment and underwater equipment needing delayed power failure. The whole action process is executed with low noise, targets are not easily exposed, and the method can be applied to special fields.