The utility model relates to a heavy oil reservoir horizontal well thermal recovery two-dimensional physical simulation device. The device comprises a high temperature and high pressure reaction kettle, and quartz sand is arranged in the reaction kettle. The reaction kettle is formed by seal connection of a kettle body and a kettle cover. A thermal-insulation silicon layer is bonded on the inner wall of the reaction kettle. A plurality of horizontal wells penetrate the two ends of the reaction kettle along the length direction of the reaction kettle and are arranged in parallel at intervals. A plurality of first temperature sensors are arranged in the reaction kettle at intervals uniformly. A pressure sensor and a second temperature sensor are arranged at the two ends of each of the plurality of the horizontal wells respectively. The first temperature sensors and the second temperature sensors are connected with a temperature data acquisition box, and the pressure sensors are connected with a pressure data acquisition box. By means of the device, heavy oil thermal recovery processes of steam drive, SAGD, steam huff and puff, hot water drive, multi-thermal-fluid huff and puff and the like, formation temperature field changes and yield dynamic changes can be analyzed, and experiment results can guide field production development.