The invention relates to the field of plastics, in particular to novel heat-resisting PVC. The novel heat-resisting PVC consists of the following components in parts by weight: 40-60 parts of polyvinyl chloride, 5-20 parts of a plasticizer, 10-25 parts of a filler, 0.5-1.2 parts of a fire retardant, 0.01-1 part of an antioxidant, 1-2 parts of trimethylol propane trimethacrylate, and 1-5 parts of a heat stabilizer. Compared with the prior art, the novel heat-resisting PVC not only has good heat stability, but also has good mechanical performance, and has large competitiveness in markets.