Device for monitoring, by means of resistance measurement, a lift belt having at least two electrically conductive traction ropes which are embedded in an electrically insulating sheath, are electrically insulated from one another and run parallel to one another in a common plane horizontally in the sheath, comprising: a contact-making device with at least one contact-making apparatus (50, 50') which is equipped with contact elements for each of the at least two traction ropes for making physical contact with the traction ropes through the electrically insulating sheath without stripping insulation; a resistance measurement system which can be electrically connected to the traction ropes of the lift belt with the aid of the contact elements; characterized in that the resistance measurement system is designed to determine the electrical resistance of at least one traction rope by means of four-conductor measurement, that is to say with separate contact-connection for current flow and voltage measurement, by causing a measurement auxiliary current to be fed in by means of the current flow contact-connection and therefore causing the measurement auxiliary current to flow along the at least one traction rope, and tapping off an electrical voltage which is dropped across the at least one traction rope by means of the voltage measurement contact-connection, and ascertaining the electrical traction rope resistance with the aid of said electrical voltage and the known measurement auxiliary current, the contact-making device has at least one connection line which serves to electrically connect the contact elements to the resistance measurement system, and the connection line is designed as a flat cable and the contact elements each make electrical contact with a traction rope of the lift belt by way of a wire of the flat cable, and the flat cable has a number of wires which corresponds to the number of traction ropes in the lift belt. a contact-making device with at least one contact-making apparatus (50, 50') which is equipped with contact elements for each of the at least two traction ropes for making physical contact with the traction ropes through the electrically insulating sheath without stripping insulation; a resistance measurement system which can be electrically connected to the traction ropes of the lift belt with the aid of the contact elements; characterized in that the resistance measurement system is designed to determine the electrical resistance of at least one traction rope by means of four-conductor measurement, that is to say with separate contact-connection for current flow and voltage measurement, by causing a measurement auxiliary current to be fed in by means of the current flow contact-connection and therefore causing the measurement auxiliary current to flow along the at least one traction rope, and tapping off an electrical voltage which is dropped across the at least one traction rope by means of the voltage measurement contact-connection, and ascertaining the electrical traction rope resistance with the aid of said electrical voltage and the known measurement auxiliary current, the contact-making device has at least one connection line which serves to electrically connect the contact elements to the resistance measurement system, and the connection line is designed as a flat cable and the contact elements each make electrical contact with a traction rope of the lift belt by way of a wire of the flat cable, and the flat cable has a number of wires which corresponds to the number of traction ropes in the lift belt.