The invention discloses a color-variable temperature measurement method of insulation layers of power products. The method comprises the following steps: mixing methyl trichlorosilane with dimethyldichlorosilane, adding a tackifying agent, an organic solvent and water, washing with water to remove acid, and carrying out polycondensation in the presence of a catalyst to prepare organosilicone resin; mixing a reversible temperature-sensitive color-variable material with the organosilicone resin, and finally adding the reversible temperature-sensitive color-variable material, casting, mould pressing, curing and molding at the temperature of 160-200 DEG C to prepare an ink base material; coating the surfaces of the power products with the reversible temperature-sensitive color-variable material. Through the color-variable temperature measurement method of insulation layers of power products, equipment contact points, busbars and cable trenches can be conveniently mounted and observed according to the coated insulation material capable of changing colors along with the temperature change; the insulation effect is achieved while the low-cost temperature measurement reminding effect is achieved.