The monograph is devoted to the experimental study of the conductivity of thin films of nanocomposites both by the passage of direct current (static) and by the reflection of electromagnetic microwave waves (dynamic), in combination with a model theoretical interpretation of the observed effects. Amorphous nanogranulated films of the metal-dielectric type of the following compositions are grown by ion-beam spraying on the lavsan substrate: (Co45.) Fe45. Zr10), x(Al2. O3), 1x, (Co45. Fe45. Zr10), x(MgO), 1x, (Co45. Fe45. Zr10), x(Zr2. O3), 1x, (Co45. Fe45. Zr10), x(Ca. Fe2), 1x. The distribution of thickness, concentration and relative volume of the metal phase, as well as static and dynamic conductivity, was investigated by the area of the films. There is a strong (up to two orders of magnitude and more) excess of dynamic conductivity over static, occurring on films with a dielectric matrix Zr2. O3 due to extremely low static conductivity of the dielectric phase (about 104.) Ohm1m1). The results are interpreted on the basis of the intragranular current model. The monograph will be useful for students and graduate students of physical specialties of universities and institutes, as well as teachers, engineers and researchers in the field of technical sciences .