The case cable management has a shell, a circuit board, multiple sockets and a cover. The shell has a bottom board and a sidewall. The circuit board is attached securely to the bottom board of the shell. The sockets are mounted through the sidewall of the shell and have multiple terminals connected securely to the circuit board. The cover covers the shell. Multiple power lines are mounted through the sidewall of the shell to connect the circuit board and sockets to a power supply and cables from computer apparatuses are connected to the sockets to receive electric power. Different cables can be distinguished clearly and conveniently for simplified cable routing to avoid confusion and facilitate replacement.