The generalized inverse theory of the matrix has been a very important discussion branch in the field of world matrices theory,and it plays a role in solving the general solu-tion,the least square solution of the linear equations and optimized control in engineering operations.We usually use the idea of dividing the matrix into2 x 2 block matrix to study the generalized inverse.After extensive research by scholars,the expression of the gener-alized inverse of the block matrix is diverse,but they have no adv...