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In this talk,I summarize the progress in the studies of the heat transport charateristics in nano-films and interfaces in the Institute of Engineering Thermophysics,CAS.This talk contains four parts:(1)ultrafast thermoreflectance technique and the analysis on simultaneous measurement of multiple thermal physical properties;(2)the measurement results of the different types of solid-liquid interfacial thermal conductance;(2)thermal conductivity temperature dependence of non-metal materials;(3)the measured thermal conductivity of ceramic materials and their interfacial thermal conductance with other materials;(4)the measured thermal conductivity of polymer thin films and their interfacial thermal conductance with other materials.