Abstract: The Code for Overhead Transmission Line Load is gradually replacing the current code.It has become an important design basis, leading the design work of tower load in overhead transmission line engineering in the future.This paper mainly studies on The Code for Overhead Transmission Line Load in the line of wind load calculation,through to the fluctuating wind and wind coefficient, gear reduction factor, and coefficient of wind vibration coefficient and other new research, the physical meaning behind the analytic coefficient and its calculation results compared with the current specification.