Vehicle door latch device comprising: - a latch release lever (3; 13; 23; 33) being a part of a latch mechanism enabling the release of the door, the latch release lever being movably mounted between an active position in which the latch release lever (3; 13; 23; 33) actuates the latch mechanism so as to unlatch the door, and a rest position in which the latch mechanism is released, - a latch casing receiving the latch release lever (3; 13; 23; 33), and - a safety device configured to close the latch casing, the safety device comprising a sealing part configured for participating of the closing of the latch casing, a shock receiving part (43; 143; 243; 343) configured to receive a shock from outside the latch casing, a blocking part (40; 140; 240; 340) configured to block the latch release lever (3; 13; 23; 33) at an intermediate position between the rest position and the active position when the shock is received by the shock receiving part (43; 143; 243; 343), so as to prevent the latch release lever (3; 13; 23; 33) from reaching the active position, the vehicle door latch device being characterized in that the sealing part permanently ensures the sealing of the latch casing so that said latch casing is sealed by the safety device so as to prevent any water ingress. - a latch release lever (3; 13; 23; 33) being a part of a latch mechanism enabling the release of the door, the latch release lever being movably mounted between an active position in which the latch release lever (3; 13; 23; 33) actuates the latch mechanism so as to unlatch the door, and a rest position in which the latch mechanism is released, an active position in which the latch release lever (3; 13; 23; 33) actuates the latch mechanism so as to unlatch the door, and a rest position in which the latch mechanism is released, - a latch casing receiving the latch release lever (3; 13; 23; 33), and - a safety device configured to close the latch casing, the safety device comprising a sealing part configured for participating of the closing of the latch casing, a shock receiving part (43; 143; 243; 343) configured to receive a shock from outside the latch casing, a blocking part (40; 140; 240; 340) configured to block the latch release lever (3; 13; 23; 33) at an intermediate position between the rest position and the active position when the shock is received by the shock receiving part (43; 143; 243; 343), so as to prevent the latch release lever (3; 13; 23; 33) from reaching the active position, the vehicle door latch device being characterized in that the sealing part permanently ensures the sealing of the latch casing so that said latch casing is sealed by the safety device so as to prevent any water ingress. a sealing part configured for participating of the closing of the latch casing, a shock receiving part (43; 143; 243; 343) configured to receive a shock from outside the latch casing, a blocking part (40; 140; 240; 340) configured to block the latch release lever (3; 13; 23; 33) at an intermediate position between the rest position and the active position when the shock is received by the shock receiving part (43; 143; 243; 343), so as to prevent the latch release lever (3; 13; 23; 33) from reaching the active position, the vehicle door latch device being characterized in that the sealing part permanently ensures the sealing of the latch casing so that said latch casing is sealed by the safety device so as to prevent any water ingress.