Aiming at the problem that the current mainstream dual-branch single-channel speech enhancement methods only pay attention to the full frequency band information while ignoring the subband information， an interactive dual-branch model based on the critical frequency band of the human ear is proposed. The main method is to implement the division method of simulating the critical frequency band of the human ear on the complex spectrum branch to process the signal in frequency division and extract sub-band information. The whole frequency band of the signal is directly processed on the amplitude compensation branch， and the information of the whole frequency band is extracted. The complex spectrum branch is responsible for initially recovering the amplitude and phase of the clean speech signal. At the same time， the subband intermediate features learned by the branch are transferred to the amplitude compensation branch by specific modules for compensation. The output on the amplitude compensation branch will further compensate the amplitude of the output on the complex spectrum branch to achieve the purpose of recovering the clean speech spectrum. Experimental results show that the proposed model is superior to other advanced models in restoring speech quality and intelligibility.