The present utility model relates to a simulation experiment device of a floating drilling well oil storage loading and unloading system. The device is characterized in that a movement control system is connected with an electro hydraulic servo actuator of a ship motion simulation system; the ship motion simulation system comprises a lower part support bracket, the bottom end of which is fixed on the ground base, the top of the lower part support bracket is provided with a lower part table facet, and the top of the lower part table facet is connected with an upper part table facet through a plurality of linear sleeves and the electro hydraulic servo actuator; a TLD model comprises a plurality of pulley blocks fixedly arranged on the upper part table facet, one ends of wire ropes winding over the pulley blocks are jointly overhung on a deck model arranged below the middle of the the upper part table facet, and the other ends of the wire ropes are respectively connected with a bob-weight mass block arranged outside the upper part table facet; the bottom surface of the deck model is provided with a plurality of extension springs, and the other end of each extension spring is fixed on the ground base; and a monitoring system comprises a plurality of sensors and dynamometers arranged on the TLD model, and the output ends of the sensors and the dynamometers are connected with a data analysis acquisition instrument.