The invention discloses a robot introduced distribution photometer which comprises a first robot and a second robot. Both the first robot and the second robot comprise a base supported by the ground, three or more rotation shafts, a rotation arm, and a clamping device arranged at the end part of the rotation arm. The first clamping device of the first robot clamps a to-be-detected object or a laser source; the second clamping device of the second robot clamps the optical detector used to receive and measure the light beams from the to-be-detected object wherein the to-be-detected object can either be a self-illumination light source or a secondary light source illuminated by an excitation light source. According to the invention, a first robot and a second robot are utilized in the combination of the support and the sliding guide rail, which increases the testing flexibility and can meet the various testing requirements of lights such as ordinary illumination light source and the display screen as well as special light source such as the secondary light source. With strong functions, high flexibility and high testing efficiency, the photometer can be applied widely.