Abstract: The weight sensor vehicle security device comprises a vehicle and a security circuit. The security circuit measures the weight of the operator. The operator enters a security code into the security circuit. The operator then enters a security code. The security circuit compares the measured weight of the operator to a weight of the operator that is associated and stored with the security code. If the measured and stored weights match, the security system enables the operation of the vehicle. After the vehicle travels a previously determined distance, the security circuit repeats the procedure. If the measured and stored weights do not match, the security system disables the operation of the vehicle.