The invention belongs to the technical field of intelligent automobile environmental perception and particularly relates to a calibration device based on laser radar and camera fusion as well as a calibration method thereof. The calibration device comprises a rack, a base plate, a turnplate, a calibration long rod, a calibration short rod, a screw, a gear shaft, a gear bearing, a gear, a bottom plate, a bottom plate steel ball, a limiting spring, a limiting steel ball, a turnplate shaft, a turnplate bearing and a spring locking mechanism. According to the calibration device based on laser radar and camera fusion as well as the calibration method thereof, which are provided by the invention, the calibration device is simple in structure, can be operated manually, can move and rotate in a two-dimensional plane and can calibrate the three-dimensional coordinates of a scanning point. The defect that the single sensor cannot acquire environmental information accurately and integrally is overcome, and a series of difficulties that the position of the scanning points is difficult to determine, the calibration process is tedious and the scanning points are discrete and discontinuous are overcome.