Navigation signal based on compound carrier (NSCC),the novel modulation scheme for navigation augmentation,hasthe special multi-carrier structure and flexible structure parameters,which enables it possess significant efficiency of navigation augmentation in terms of integrated communication and navigationservice.However,due to itsspecial structure,the conventional acquisition methods cannot be applied on the NSCC.The paper,based on the characteristics of NSCC,proposed a kind of multi-channel acquisition method for multi-carrier system.The proposed method combines multi-channels to realize energy accumulation of NSCC subcarriers by utilizing NSCC knowledge.This method is easy to implementwith slight modificationof current receivers.Both the theoretical analysis and simulation results illustrate that the proposed method achieves desirable acquisition performance,reduces computation load and speeds up the acquisition with the restricted hardwarein comparison of the conventionalsingle-carrier acquisition methods.