The utility model discloses a novel tensioner safety hook. The novel tensioner safety hook comprises a safety hook body and a tensioner, wherein the safety hook body is movably connected with the tensioner through a connection ring. When the novel tensioner safety hook is used, three strands of core polyester fiber ropes and with diameters of 16 mm or 18 mm are enabled to penetrate through the tensioner by more than 160 mm in the same direction, and then the ropes are pulled in an opposite direction, tensile force is generated under the retardation action of an inner claw of the tensioner, the ropes are prevented from rolling back, and non-heavy-load workpieces, such as support columns, small hardware rigging, fishing nets or ropes, are hooked by the safety hook at the same time. According to the novel tensioner safety hook, dangerous accidents caused by the back-rolling of a main rope used for tight pulling or by the falling of the workpieces on the safety hook are effectively avoided, and safety in a construction process is guaranteed.