A personal digital assistance case (C) for a saddle-ride vehicle, comprising: a case main body that includes a back-surface wall portion and a side wall portion which surround a personal digital assistance (P), and has an opening that opens a front surface of the personal digital assistance (P); an openable and closable lid member that covers the opening of the case main body by a hinge shaft provided at the case main body ; and a rectangular window that is formed at the lid member and makes a display unit provided at a front side of the personal digital assistance (P) visible, wherein a transparent plate member is arranged at the window , and the transparent plate member is adhesively-fixed to a peripheral edge of the window , and in a lower side wall portion that is located at a lower side of the side wall portion of the case main body , a handling button that has a fixed width in a horizontal direction of the case main body is located at a center portion in an extending direction of the lower side wall portion , characterized in that the handling button includes an L-shaped locking end which is integrally formed thereat, the L-shaped locking end allows an end thereof to be directed to the outside of the lower side wall portion , the lid member includes an L-shaped locked end that is provided on an inner surface of the other end side of the lid member in a longitudinal direction thereof, an end of the locked end is engaged with the end of the locking end , when the end of the locked end is engaged with the end of the locking end in the direction in which the side wall portion of the case main body is provided upright, a closed state of the lid member is maintained, and when a locking state is released, the lid member opens. a case main body that includes a back-surface wall portion and a side wall portion which surround a personal digital assistance (P), and has an opening that opens a front surface of the personal digital assistance (P); an openable and closable lid member that covers the opening of the case main body by a hinge shaft provided at the case main body ; and a rectangular window that is formed at the lid member and makes a display unit provided at a front side of the personal digital assistance (P) visible, wherein a transparent plate member is arranged at the window , and the transparent plate member is adhesively-fixed to a peripheral edge of the window , and in a lower side wall portion that is located at a lower side of the side wall portion of the case main body , a handling button that has a fixed width in a horizontal direction of the case main body is located at a center portion in an extending direction of the lower side wall portion , characterized in that the handling button includes an L-shaped locking end which is integrally formed thereat, the L-shaped locking end allows an end thereof to be directed to the outside of the lower side wall portion , the lid member includes an L-shaped locked end that is provided on an inner surface of the other end side of the lid member in a longitudinal direction thereof, an end of the locked end is engaged with the end of the locking end , when the end of the locked end is engaged with the end of the locking end in the direction in which the side wall portion of the case main body is provided upright, a closed state of the lid member is maintained, and when a locking state is released, the lid member opens. <EOS>