A motor vehicle door latch device comprises an engagement unit that can engage with a striker and an operating unit attached to the engagement unit. The operating unit comprises an operating mechanism. The operating mechanism comprises a locking motor; a locking mechanism comprising mechanical elements that can be shifted to an unlock state and a lock state based on drive of the locking motor; an electric release motor for releasing the opening lever regardless of a state of the locking mechanism based on drive of the releasing motor; and an inside lever that is pivotally mounted, via a first shaft, for pivotally mounting the electric release lever to a housing and is rotated based on a door opening action of the internal mechanical elements thereby releasing the opening lever, when the locking mechanism is in an unlock state.