The invention provides a six-axis-driven three-degree-of-freedom static load balancing large parallel movement simulation platform comprising a baseplate, a bearing table, six linear driving units, six counterweight components, three triangle branches and three intermediate power-assisted branches. Two of the six linear driving units are grouped to be arranged in parallel to act as synchronous input of one triangle branch. The linear driving units are fixedly connected with the baseplate. The two lower ends of each triangle branch are connected with a group of slide block through two rotating pairs, and the upper end of each triangle branch is connected with the bearing table through a first spherical hinge. Each counterweight component is composed of two chain ropes, two fixed pulley groups and a counterweight block. One end of each chain rope is connected with the slide block around the fixed pulley groups, and the other end is connected with the counterweight block. Each intermediate power-assisted branch is composed of a second spherical hinge, a power-assisted cylinder and a third spherical hinge. One end of the power-assisted cylinder is connected with the baseplate through the second spherical hinge, and the other end is connected with the bearing table through the third spherical hinge. The six-axis-driven three-degree-of-freedom static load balancing large parallel movement simulation platform is high in rigidity, high in bearing capability and low in actuator power and is particularly suitable for large-scale and ultralarge-scale movement simulation.