The invention discloses a LED 
chip thermal vibration accelerated life prediction method based on gray 
system theory, which comprises the following steps: firstly, applying acceleration stress under different loading 
modes to an LED 
chip, and acquiring life experiment 
original data under different acceleration stress; then, carrying out grey 
processing on the experiment 
original data by using a grey 
system theory to obtain grey 
analysis data, and constructing a grey 
system theory prediction model; and finally, carrying out 
grey correlation degree analysis on the constructed grey system 
theory model. Compared with the prior art, the grey system prediction model does not need to consider a temperature-vibration interaction relationship and a 
statistical model related to a physical failure rule, and can obtain efficient and accurate prediction and evaluation. According to the method, the service life of the LED 
chip under the thermal and vibration double stress in normal work can be estimated through the original service life data under the acceleration stress and the 
number series prediction of the gray system theory, the prediction result is closer to the 
engineering practice, and ascientific data theory reference basis can be provided for designing and producing the LED chip with high performance and high stability.