A turbine blade fitting apparatus for fitting multiple turbine blades radially to a disc having multiple disc grooves formed in its periphery. A blade preassembly is made by preassembling multiple turbine blades into a ring by connecting together their tips. The fitting apparatus has a second pedestal for temporarily placing the blade preassembly so that the upper face of the blade preassembly is higher than the upper face of a disc supported horizontally on a first pedestal. The second pedestal is lowerably supported by compression springs. Base parts of the blades are completely fitted into the disc grooves by the blade preassembly being pushed downward by a pushing mechanism while being vibrated.