Abstract:The maximum likelihood estimation of the shape parameterꎬ reliability and failure rate on Burr Ⅻ distribution is discussed under type Ⅰ censored samplesꎬ the expression of the maximum likelihood estimation is givenꎬ the consistency and asymptotic normality of the estimations are provedꎬ its approximate interval estimation and hypothesis test formula are givenꎬ and finallyꎬ the numerical simulation of parameter estimations is carried out. The result shows that the maximum likelihood estimation of the shape parameter is effective.