A method was introduced for correction of fatigue life scatter factor based on time truncated zero-failure data contributing to Weibull distribution. The formula of scatter factor correction coefficient was defined and proved detailedly following time truncated zero-failure data. For the completed date is basically different from the truncated zero-failure data

their fatigue life scatter factor is significantly different. Therefore

according to the definition of fatigue life scatter factor

five kinds of fatigue life scatter factors was corrected

which based on average life

character life

median life

mini life

max life respectively for two parameter Weibull distribution of time truncated zero-failure data. A comparison of fatigue life scatter factor between the complete data was introduced for analysis

and the results show that the method implied in this paper can fully make use of the information of time truncated zero-failure data

and improve the forecasting precision of safe fatigue life significantly. Also the correction coefficient is easy for calculation and convenient for engineering.