This paper measures the value of private benefits of control by the premium difference of the transference of controlling block to non-controlling block. The private benefit of control is 17%. The debt and the share proportion of the transference have different influences over the premium of transference of controlling block and non-controlling block. The size of company has a negative relation with the premium of the transference of block. Further study shows that the controlling power of the shareholder and the decentralization of share have positive relation with the premium of transference of the controlling block. The lower balances power of the shareholder, the higher the premium of the transference of control. No evidence shows that the proportion of highly executive share holding can have influence over the premium of the transference of control.