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Based on the Mindlin plate theory, a refined discrete 15-DOF triangular laminated compositeplate finite element RDTMLC with the re-constitution of the shear strain is proposed. For constituting theelement displacement function, the exact displacement function of the Timoshenkos laminated compositebeam as the displacement on the element boundary is used to derive the element displacements. Theproposed element can be used for the analysis of both moderately thick and thin laminated compositeplate, and the convergence for the very thin situation can be ensured theoretically. Numerical examplespresented show that the present model indeed possesses the properties of higher accuracy for anisotropiclaminated composite plates and is fre of locking even for extremely thin laminated plates.