Disclosed is a thread making technological parameter dynamic quality stability characterization method. The method comprises the steps that stable-state data and unstable-state data of a technological parameter in thread making procedures are collected; the deviation degree and the dispersion degree of the stable-state data and a technology index of the technological parameter are worked out according to the stable-state data; the unqualified time of the technological parameter is calculated according to the unstable-state data; the deviation degree and the dispersion degree of the technological parameter and the unqualified time of the unstable-state data are converted respectively according to a preset dynamic quality stability evaluation function in the stable-state process and a preset dynamic quality stability evaluation function in the unstable state process, and a dynamic quality stability assessed value of the stable-state data and a dynamic quality stability assessed value of the unstable-state data are of the technological parameter are acquired respectively; whether the dynamic quality stability assessed value of the stable-state data and the dynamic quality stability assessed value of the unstable-state data of the technological parameter reach corresponding preset threshold values respectively or not is judged, and if a dynamic quality stability assessed value does not each the preset threshold values, the executing process of the technological parameter is correspondingly adjusted, controlled and optimized. The thread making technological parameter dynamic quality stability characterization method achieves the optimized effect which is more comprehensive and is more in line with reality.