A wall outlet type USB hub with independent charging function includes a mounting case and a combined USB hub and socket unit. The mounting case includes a rear case portion for mounting on a wall and a front case portion assembled to a front opening of the rear case portion. The combined USB hub and socket unit includes a housing member held in the mounting case via retaining means and having multiple openings; a printed circuit board located inside the housing member and having a power module and a hub module; multiple data transfer ports electrically connected to the hub module and aligned with the openings on the housing member; and a power connector electrically connected to the power module. The wall outlet type USB hub matches general wall outlet's cover plate specification and can replace existing AC wall outlet to enable both data transmission and DC power supply functions.