The invention discloses a method for detecting claimed service life of an LED lamp. The method comprises the following steps: S1) providing an LED lamp sample; S2) determining reliability test item type of the LED lamp sample; S3) determining test time, acceleration factors and equivalent test time corresponding to each type and total equivalent time of all types; S4) carrying out reliability test on the LED lamp sample and judging whether the LED lamp sample is qualified; S5) obtaining an average failure time curve of the LED lamp sample under the condition that failure number is 0; and S6) judging whether the claimed service life of the LED lamp sample reaches the standard according to the average failure time curve. The method has the advantages of short consumed time, low cost and simple and convenient judgment, and can provide reference for designing, producing and detecting the long-life LED lamp sample.