Abstract: In order to overcome a number of challenges in CMOS millimeter-wave integrated circuit design, the millimeter-wave device modeling, antenna design, circuit block, and multi-channel transceiver system are introduced in this paper. The equivalent-circuit models of millimeter-wave on-chip interconnected lines, multiple-coupled inductors, six-port M:N transformers, and the model of terahertz active device are studied and proposed, respectively. Moreover, a low noise amplifier with noise canceling and a power amplifier with a fully symmetrical distributed active transformer are introduced in this paper. Furthermore, the CMOS 60 GHz receiver with on-chip antenna and the multi-channel phase array transceiver are described, respectively.