Multifunctional clamp for solar radiation test

The utility model discloses a multifunctional clamp for a solar radiation test. The multifunctional clamp comprises two support frames, wherein the two support frames encircle a triangular shape; an angle between the two support frames is adjustable; and transverse beams of the support frames are provided with installing holes. The clamp is hardly affected by temperature, humidity and solar radiation. The relative angle and the position of a sample do not change before, during and after the test, so that test data is more true and reliable. Moreover, the angle between the two support frames of the clamp can be adjusted optionally, so that multiple solar radiation tests can be performed at different angles by using one clamp, and cost and time can be saved effectively.