A latch release device for a vehicle door, comprising: a latch device that has an electric actuator which operates to release a latch state of a vehicle door and that also enables release of the latch state in response to a mechanical input of a latch release operation force; an operation member which can be operated directly and manually by an operator; a first spring that urges the operation member to a non-operation position side; a switch that is connected to the electric actuator so as to be made electrically continuous in response to an operation of the operation member from the non-operation position to a first operation position; and latch release operation force transmitting means that mechanically transmits a latch release operation force to the latch device in response to an operation of the operation member to a second operation position, an operation amount from the non-operation position to the second operation position being larger than an operation amount from the non-operation position to the first operation position, wherein the latch release device further comprises: a rotary lever that constitutes a part of the latch release operation force transmitting means to rotate by being linked with an operation of the operation member from the first operation position to the second operation position; and a second spring that directly urges the rotary lever to a non-rotation position side, wherein the operation member, the first spring, the rotary lever and the second spring are mounted to a common case which is mounted to the vehicle door, characterized in that the switch is also mounted to the common case, and the operation member is slidably fitted in the case. a latch device that has an electric actuator which operates to release a latch state of a vehicle door and that also enables release of the latch state in response to a mechanical input of a latch release operation force; an operation member which can be operated directly and manually by an operator; a first spring that urges the operation member to a non-operation position side; a switch that is connected to the electric actuator so as to be made electrically continuous in response to an operation of the operation member from the non-operation position to a first operation position; and latch release operation force transmitting means that mechanically transmits a latch release operation force to the latch device in response to an operation of the operation member to a second operation position, an operation amount from the non-operation position to the second operation position being larger than an operation amount from the non-operation position to the first operation position, wherein the latch release device further comprises: a rotary lever that constitutes a part of the latch release operation force transmitting means to rotate by being linked with an operation of the operation member from the first operation position to the second operation position; and a second spring that directly urges the rotary lever to a non-rotation position side, wherein a rotary lever that constitutes a part of the latch release operation force transmitting means to rotate by being linked with an operation of the operation member from the first operation position to the second operation position; and a second spring that directly urges the rotary lever to a non-rotation position side, wherein the operation member, the first spring, the rotary lever and the second spring are mounted to a common case which is mounted to the vehicle door, characterized in that the switch is also mounted to the common case, and the operation member is slidably fitted in the case.