Provided is an instant water boiling device, which comprises: an instant water boiler (300) provided with a water inlet and a water outlet communicated with a faucet; a control panel (200) arranged on the faucet; and a controller in signal connection with the control panel (200) and the instant water boiler (300). According to the invention, the control panel (200) is separated from the instant water boiler (300), which is convenient to install, the instant water boiler (300) with a larger volume can be installed in a cabinet under a tabletop, which saves a space of the tabletop, and meanwhile, the control panel (200) is installed on the faucet, which is convenient for a user to operate the control panel (200), thus facilitating the operation, simplifying the installation, and saving the space of the tabletop.