Data extraction method for mobile phone storage chip

The invention discloses a data extraction method for a mobile phone storage chip, and belongs to the field of data extraction. The data extraction method includes the following steps that 1, the storage chip is taken out of a mobile phone; 2, a data sheet of the storage chip is found according to the type of the storage chip, and if the data sheet cannot be found, a data sheet of a chip of the same package type as the storage chip is found; 3, a DATA pin, a CMD pin, a CLK pin, a Vss pin and a Vcc pin of the storage chip are found according to the data sheet 201; the data pin, found in the step 3, of the storage chip is connected to a main control chip with an MMC read protocol, the main control chip is connected with a USB interface of a computer, and NAND FLASH data in the eMMC chip are read. The data extraction method has the advantages that the method can be used for repairing data in terminal equipment destroyed already and can bypass terminal equipment protected by utilization passwords.