The invention provides a dynamic positioning simulation test platform and a position control method. The dynamic positioning simulation test platform comprises a ship motion simulation computer (7), a three degree-of-freedom horizontal motion platform (8), a four degree-of-freedom motion rotary table (9), a data processing computer (4), a comprehensive display and control computer (6), a compass (1), a global position system (GPS) (2), and a mobile radio unit (MRU) (3), wherein the data processing computer (4), the ship motion simulation computer (7), the three degree-of-freedom horizontal motion platform (8), and the four degree-of-freedom motion rotary table (9) are connected to form a local area network through Ethernet, the four degree-of-freedom motion rotary table (9) is installed on the three degree-of-freedom horizontal motion platform (8), the compass (1), the GPS (2), and the MRU (3) are all installed on the four degree-of-freedom motion rotary table (9) and are connected with the data processing computer (4) through serial interfaces, and a data fusion algorithm (5) is loaded in the data processing computer (4). The dynamic positioning simulation test platform and the position control method can be used for simulating six degree-of-freedom motion of ships.