The invention discloses a method for dynamically visualizing bus voltage. The invention solves the problems that the voltage data display in the prior art is decentralized, the index is simplified, and the display form is static. The invention adopts the centralized stereoscopic visualization histogram and utilizes the coordinate system dynamic adaptive technology to dynamically display the voltage value, the upper limit value and the lower limit value of the voltage, the margin of the voltage value exceeding the limit value, the percentage of the voltage value exceeding the limit value and other indexes comprehensively and intuitively, so as to provide the basis for the operator to efficiently adjust the voltage.