The present invention discloses a data processing method of an intelligent terminal constant current IC chip. The method includes the following steps that: when a display screen is electrified for the first time, a main control chip initializes the constant current IC chip with a preset safe value; the current value and voltage value of the output end of the initialized constant current IC chip are obtained; and when the obtained current value is beyond a preset current range, and the obtained voltage value is within a preset voltage range, configuration information corresponding to the specifications of the display screen is acquired based on the current value and voltage value, and the configuration information is stored. The invention also discloses a data processing device of the intelligent terminal constant current IC chip. With the data processing method and data processing device of the invention adopted, the configuration information of the constant current IC chip can be acquired and stored, so that the main control chip can acquire the configuration information of the corresponding constant current IC chip according to the specifications of the current display screen, and the main control chip can be compatible with the constant current IC chips of display screens in different specifications, and the compatibility of the constant current IC can be improved.