A pedal device for an electronic percussion instrument, the pedal device comprising: a base placed on a floor; a pedal rotatably and pivotally supported by the base at one longitudinal end side; and a force applying member applying a force in a direction to separate the pedal from the base, wherein a first detection means for detecting a rotation of the pedal or a second detection means for detecting the rotation of the pedal by a method different from the first detection means is alternatively disposed in the base, characterized in that the pedal comprises a pressing part at the other longitudinal end side of the pedal, and the pressing part is disposed on a lower surface side of the pedal, wherein the base comprises a first portion located under the pressing part for supporting the first detection means, and a second portion located around the first portion for supporting the second detection means, wherein the first detection means comprises a first pressed part disposed on the first portion and a first sensor detecting whether the first pressed part is pressed by the pressing part, wherein the second detection means comprises a second pressed part disposed to bridge the second portion and a second sensor detecting whether the second pressed part is pressed by the pressing part, wherein the first portion supports the first detection means such that the first pressed part is disposed on a displacement trajectory of the pressing part that displaces with the rotation of the pedal, and wherein the second portion disposes the second detection means such that the second pressed part is disposed on the displacement trajectory of the pressing part that displaces with the rotation of the pedal. a base placed on a floor; a pedal rotatably and pivotally supported by the base at one longitudinal end side; and a force applying member applying a force in a direction to separate the pedal from the base, wherein a first detection means for detecting a rotation of the pedal or a second detection means for detecting the rotation of the pedal by a method different from the first detection means is alternatively disposed in the base, characterized in that the pedal comprises a pressing part at the other longitudinal end side of the pedal, and the pressing part is disposed on a lower surface side of the pedal, wherein the base comprises a first portion located under the pressing part for supporting the first detection means, and a second portion located around the first portion for supporting the second detection means, wherein the first detection means comprises a first pressed part disposed on the first portion and a first sensor detecting whether the first pressed part is pressed by the pressing part, wherein the second detection means comprises a second pressed part disposed to bridge the second portion and a second sensor detecting whether the second pressed part is pressed by the pressing part, wherein the first portion supports the first detection means such that the first pressed part is disposed on a displacement trajectory of the pressing part that displaces with the rotation of the pedal, and wherein the second portion disposes the second detection means such that the second pressed part is disposed on the displacement trajectory of the pressing part that displaces with the rotation of the pedal.