A method for authorizing an approval process and approval node thereof for a user is provided. The method for authorizing an approval process a user comprises: selecting a user in a system; displaying all approval processes in the system, and displaying current usage permission states of the selected user with respect to the approval processes; and authorizing usage permissions of the approval processes to the selected user. All of the approval processes or all approval nodes in the system are displayed after the user is selected, without omitting any approval process or any approval node, thereby facilitating quick authorization of related permissions to the user.