Based on relating equation group, a simp lifiedmethod was presented in term s of thematrix disp acement method, which can be conveniently used to study the re-dist ribution of the internal forces and disp lacement of truss structures due to the removal of members. Such removal is treated as though adding a load case to the o riginal truss, and the re-dist ribution can be calculated withoutmodifying the original global stiffnessmatrix. The compu-tational efficiency of thep resented method is faster by square times than that of the matrixdisp lacement method. The results from the two methods are identical.