The invention discloses a rotor non-trial-weight dynamic balancing method suitable for distributed unbalance. The method includes the steps that firstly, on the basis of an established rotor finite element dynamic model, correction of the dynamic model is achieved through experiments and
simulation, and then finite element node stress is used for describing the distributed unbalance of a rotor; secondly, dimensions of a dynamic
transfer matrix in a describing equation of the distributed unbalance are extended through increase of the test rotating speed, reversibility of the
transfer matrix is achieved, and then solution of the distributed unbalance is achieved through
matrix inverse operation; finally, precise
dynamic balance of the rotor is achieved through a concentrated
correction method of the distributed unbalance. According to the rotor non-trial-weight dynamic balancing method suitable for the distributed unbalance, the distributed unbalance can be recognized integrally, and the
dynamic balance precision is improved; no
test weight is needed in the
dynamic balance process, dynamic balance can be completed with the only requirement that the speed is lower than a critical rotating speed, safety of dynamic balance operation is guaranteed, and the requirements of the high-speed rotor are met; the dynamic balance process is concise, and
automatic control of computers is achieved conveniently.