In order to improve the transmission capability of ultra-high definition video, a millimeter wave commu- nication based ultra-high definition video transmission method is proposed. Construct a channel model for ultra high definition video transmission using multi frequency modulation communication networking technology, and establish an adaptive image information exchange and acquisition model for ultra high definition video millimeter wave communica- tion transmission; Combined with Lyapunov exponent spectral density feature analysis, spectral feature decomposition and channel equalization model construction are realized; Establish a model for scene conversion and high-order spec- tral feature extraction for video transmission; Adopting millimeter wave communication technology to achieve filtering compensation and feedback gain adjustment; By using the statistical feature analysis method of joint autocorrelation, a dynamic equalization iterative function is obtained. Through anti-interference suppression and equalization scheduling in complex channel environments, lossless transmission, encoding and decoding of ultra-high definition videos are a- chieved. The simulation results show that the bit error rate of UHD video transmission with this method is low, with an average of 0. 058 2, the Transmission delay is low, with an average of 248. 4 ms, and the peak signal-to-noise ratio is 49 dB.