This review discusses high-precision angle measurement technologies, focusing on single-axis and multi-axis measurement schemes. Single-axis methods include optical, mechanical, electromagnetic, and inertial techniques. Optical methods, such as interferometry, offer high accuracy but are costly, while encoder discs provide a large measurement range at a lower cost. Mechanical methods use gear pairs and structural changes for angle measurement, though they are less accurate. Electromagnetic methods, like inductance and Hall effect sensors, and inertial methods, such as gyroscopes and accelerometers, are also used. Multi-axis methods include autocollimation instruments, with planar mirrors, gratings, and self-designed targets. Grating encoders can measure three degrees of freedom but have limited range and sensitivity. Self-designed targets offer better performance. Artificial intelligence is increasingly used to enhance precision measurement. The review highlights the importance of angle measurement in precision manufacturing and the evolving technologies that provide more options for applications requiring single/multiple axes, accuracy, range, and budget. It also discusses the development of angle measurement from ancient geometric methods to modern high-precision, multi-axis, and large-range technologies, with the integration of artificial intelligence and big data analysis. The review emphasizes the role of angle measurement in various fields and the need for suitable technical solutions based on application requirements.This review discusses high-precision angle measurement technologies, focusing on single-axis and multi-axis measurement schemes. Single-axis methods include optical, mechanical, electromagnetic, and inertial techniques. Optical methods, such as interferometry, offer high accuracy but are costly, while encoder discs provide a large measurement range at a lower cost. Mechanical methods use gear pairs and structural changes for angle measurement, though they are less accurate. Electromagnetic methods, like inductance and Hall effect sensors, and inertial methods, such as gyroscopes and accelerometers, are also used. Multi-axis methods include autocollimation instruments, with planar mirrors, gratings, and self-designed targets. Grating encoders can measure three degrees of freedom but have limited range and sensitivity. Self-designed targets offer better performance. Artificial intelligence is increasingly used to enhance precision measurement. The review highlights the importance of angle measurement in precision manufacturing and the evolving technologies that provide more options for applications requiring single/multiple axes, accuracy, range, and budget. It also discusses the development of angle measurement from ancient geometric methods to modern high-precision, multi-axis, and large-range technologies, with the integration of artificial intelligence and big data analysis. The review emphasizes the role of angle measurement in various fields and the need for suitable technical solutions based on application requirements.