A sound source control information generating apparatus, an electronic percussion instrument, and a sound source control information generating method, adapted for preventing generation of an unintended sound caused by a rebound of an object placed on one struck head, are provided. According to the present invention, if a first output value with respect to one struck head is obtained, the one struck head serves as a target struck head, and information is generated for controlling a sound source means such that a sound generation process performed by the sound source means differs according to whether the first output value obtained with respect to the target struck head or a value corresponding to the first output value is greater than a predetermined threshold value.