Abstract: A new stochastic multivariable adaptive pole placement controller proposed in this paper can avoid solving pseudo commutative matrix equation on line to achieve arbitrary pole placement and can track the time varying reference input as well as can restrain disturbance of stochastic noise.Not only may it control open-loop unstableand nonminimum phase systems,but also it may control general stochastic systems with arbitrary,unknown,varying time delay structure and arbitrary numbers of inputs and outputs.