The robust stability of uncertain linear neutral systems with discrete and distributed delays is investigated.The uncertainties under consideration are norm bounded,and possibly time varying.By means of the equivalent equation of zero in the derivative of the Lyapu,nov- Krasovskii function,the proposed stability criteria are formulated in the form of a linear matrix inequality and it is easy to check the robust stability of the considered systems.Numerical examples demonstrate that the proposed criteria are effective. The robust stability of uncertain linear neutral systems with discrete and distributed delays is investigated. The uncertainties under consideration are norm bounded, and possibly time varying. By the same equation of zero in the derivative of the Lyapu, nov- Krasovskii function, the proposed stability criteria are formulated in the form of a linear matrix inequality and it is easy to check the robust stability of the considered systems. Numerical examples demonstrate that the proposed criteria are effective.