Provided are a mobile terminal-based NFC stress testing method and system, and a storage device. The method comprises: connecting to a computer to acquire a preset count and a preset frequency; activating an NFC service; determining whether a flag bit is enabled, and if so, detecting an NDEF message, or if not, waiting for the computer terminal to modify the flag bit to be enabled before detecting an NDEF message; and uploading, by a hardware abstraction layer, the NDEF message to an NFC application, disabling a service flag bit, and returning to wait for the computer terminal to modify the flag bit, until detection is complete.