The calculation for a practical example of vertical breakwater shows that the value of β ob-tained by the improved JC method and this new method(HL method) are coincided well with the case of correlated variables,and the β value for the case of correlated variab.

According to the definition of fuzzy failure probability for fuzzy failure domain, the methods of fuzzy reliability sensitivity(FRS) analysis with correlative variables are presented.

Finally,taking advantage of the relationship between the correlative variables and the independent normal variables,the RS of the failure probability with respect to all distribution parameters of the correlative normal variables can be obtained by the chain rule of derivatives.

For the Reliability Sensitivity(RS) problem with normal correlative variables,an analytical method for linear performance function and a numerical simulation method are presented,and an efficient moment based RS method is presented as well to analyze the reliability sensitivity with the normal correlative variables.