A sliding door system, which enables to reduce human force required to open and close the sliding doors in the vehicles, comprising - at least one sliding door which enables access inside and outside the vehicle, and for each sliding door: - one permanent magnet which enables to give pushing and pulling force to the sliding door, - one door handle which enables the sliding door to be opened and closed by the user, - one electromagnet which corresponds to the permanent magnet, enables to give first pushing force in order to close the sliding door by pushing the permanent magnet, and allows the door remaining fixed in fully open position safely upon its core is pulled by the permanent magnet, one electric circuit comprising: - one relay which enables the electromagnet to be operated, - one power supply which is connected to the relay, - one primary switch which can be opened and closed according to the position of the sliding door, - one secondary switch which can be opened and closed depending on the door handle being pulled or not, whereby the first and secondary switch are serially connected; - whereby the door handle enables the sliding door to be opened and closed by the user, and allows the current passing through the secondary switch by being closed when it is pulled; wherein the sliding door system further comprises for each sliding door: - a protrusion which is provided on the side part of the sliding door, which enables the primary switch to be closed by pushing the open primary switch to mechanically close, and thus enables current to pass through the electric circuit. - at least one sliding door which enables access inside and outside the vehicle, and for each sliding door: - one permanent magnet which enables to give pushing and pulling force to the sliding door, - one door handle which enables the sliding door to be opened and closed by the user, - one electromagnet which corresponds to the permanent magnet, enables to give first pushing force in order to close the sliding door by pushing the permanent magnet, and allows the door remaining fixed in fully open position safely upon its core is pulled by the permanent magnet, - one permanent magnet which enables to give pushing and pulling force to the sliding door, - one door handle which enables the sliding door to be opened and closed by the user, - one electromagnet which corresponds to the permanent magnet, enables to give first pushing force in order to close the sliding door by pushing the permanent magnet, and allows the door remaining fixed in fully open position safely upon its core is pulled by the permanent magnet, - one relay which enables the electromagnet to be operated, - one power supply which is connected to the relay, - one primary switch which can be opened and closed according to the position of the sliding door, - one secondary switch which can be opened and closed depending on the door handle being pulled or not, - whereby the door handle enables the sliding door to be opened and closed by the user, and allows the current passing through the secondary switch by being closed when it is pulled; wherein the sliding door system further comprises for each sliding door: - a protrusion which is provided on the side part of the sliding door, which enables the primary switch to be closed by pushing the open primary switch to mechanically close, and thus enables current to pass through the electric circuit. - a protrusion which is provided on the side part of the sliding door, which enables the primary switch to be closed by pushing the open primary switch to mechanically close, and thus enables current to pass through the electric circuit.