The invention discloses an orthogonal rhombus dual-mode precise piezoelectric stick-slip rotating platform and a driving method thereof, and aims to solve the technical problems of low external interference resistance caused by poor static retention of a current micro-nano stick-slip rotating platform, motion oscillation caused by displacement rollback, weak output performance and the like. The motor is composed of a pre-tightening assembly, a stator, a rotor, a base and an end cover. The single-step displacement amount of the platform is increased through the rhombic displacement amplification mechanism, high-precision feeding and accurate positioning are achieved through a single-stacking driving mode, the operation speed and the load capacity of the rotating platform are improved through a coupling driving mode, displacement rollback is restrained, and motion oscillation is reduced; meanwhile, due to the fact that the stick-slip driver has a coupling driving mode, the stick-slip driver can have larger holding force in a static state and is high in external interference resistance in a non-working state; the rotor shell is in interference fit with the outer ring of the bearing, the vertical bearing force of the rotating table is transmitted to the bearing, the driving effect of the stator is not affected, and the load capacity of the rotating table is improved. The invention has the characteristics of simple structure, good output performance, high positioning precision, large static retentivity and the like, and has good development potential and application value in the field of precision driving and positioning.