Luminous flux testing method of LED spotlight

The invention discloses a luminous flux testing method of an LED spotlight, which comprises the following steps: placing an illumination meter (1), an illumination meter fixing frame (2), a rotary table (3) and a tested LED spotlight sample (4) in a darkroom, the illumination meter (1) is fixed on the illumination meter fixing frame (2), the tested LED spotlight sample (4) is fixed on the rotary table (3), the horizontal rotation central shaft of the tested LED spotlight sample (4) and the central line of the illumination meter (1) are arranged on the same horizontal line, the rotary table (3)rotates around the vertical central shaft clockwise or anticlockwise from the position of 0 degree according to the test interval, the illumination value received by the illumination meter is recorded when the rotary table (3) rotates for each test interval until the rotary table (3) rotates for 180 degrees, and the luminous flux value of the tested LED spotlight sample is calculated according tothe recorded illumination