▎ 摘　　要

NOVELTY - The utility model claims a device for improving temperature measurement precision based on SPR, which is to improve the problem of low precision and practicability of the existing temperature measurement. The utility model comprises a small hole for filling temperature sensitive liquid toluene, a metal gold layer, a graphene hole, a small air hole, a large air hole, a quartz substrate and a perfect matching layer; each air hole is regularly arranged on the quartz substrate by filling the small holes of the temperature sensitive liquid methylbenzene as the centre; a perfect matching layer is set outside the quartz substrate; the small hole filling the temperature sensitive liquid toluene is coated with a metal gold layer. The utility model is suitable for the field of optical fibre temperature sensing.