The invention discloses a dedicated transformer for distributed generation and a vibration measurement method of the dedicated transformer, belonging to the technical field of design and manufacture of transformers and signal monitoring. The dedicated transformer is a an amorphous alloy distribution transformer which is made by taking amorphous alloy as an iron core and has the capability of effectively reducing the no-load loss of the transformer and improving the solar power generation efficiency. The iron core structure is of a three-phase three-column structure, not only can be used for connecting a group Dyn11, but also can meet the wiring requirement of Yyn0. An internal winding is of a three-phase split winding structure, comprises a high-voltage winding and two split low-voltage windings and has the capabilities of effectively limiting a short-circuit current of a network and saving the building investment cost and the occupying area. According to the dedicated transformer disclosed by the invention, an RBF (Radial Based Function) neural network model is established by adopting a soft measurement technology and acquiring related information, such as real-time voltage, current, magnetic flux and leakage flux of the transformer to realize online monitoring of vibration information. The dedicated transformer disclosed by the invention is widely applied to the application occasions of distributed generation, in particular to solar power generation.