The invention discloses a sound effect adjusting method and system of audio equipment and a storage medium. The method comprises the following steps: acquiring an EQ parameter of the audio equipment;displaying the obtained EQ parameters in the form of an EQ curve; receiving an adjustment operation on the EQ curve, and generating and displaying the adjusted EQ curve according to the adjustment operation; performing calculating according to the adjusted EQ curve to obtain an adjusted EQ parameter; transmitting the adjusted EQ parameters to audio equipment; and controlling the audio equipment tochange the original EQ parameters into the adjusted EQ parameters, thereby realizing sound effect adjustment of the audio equipment. According to the invention, the sound effect of the audio equipment is adjusted based on the EQ curve, so that a user can customize the EQ parameters of the audio equipment according to personal preferences, the listening requirements of different users are met, andthe listening experience of the user is improved.