▎ 摘　　要

NOVELTY - Preparing temperature-responsive conductive structural color film comprises (1) preparing a homogeneous colloidal nanoparticle ethanol solution, and preparing the colloidal crystal positive structure template by vertical deposition at a certain temperature, (2) using the template sacrifice method, and pouring the polymer solution into the colloidal crystal positive structure template to completely fill the particle gaps, curing the polymer solution by ultraviolet irradiation or oven heating, and etching to obtain the inverse opal structure hydrogel film with bright structural color, and (3) pouring temperature-responsive conductive hydrogel precursor into it based on bright structure color inverse opal structure hydrogel film, carrying out UV curing or oven heating to obtain temperature-responsive conductive structural color film. USE - The structural color film is useful as a dual-signal sensor for monitoring external temperature. ADVANTAGE - The method is simple in operation and economical, and does not require a large-scale monitoring instrument. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for use method for temperature-responsive conductive structural color film as a dual-signal sensor for monitoring external temperature comprising specifically manifesting the temperature response as adjusting the temperature to control the shrinkage and expansion of the nano-holes, and realizing the change of the structural color and feedback the conductivity data.