Results Some properties and criterions about involutory matrix are obtained.The relationships of involutory matrix, generalized symmertrical matrix and generalized orthogonal matrix are established.

• 结果得到了拟对合矩阵的一些性质与判定，并揭示了拟对合矩阵与广义正交矩阵、广义对称矩阵之间的关系。