The invention discloses a new energy automobile power battery electromagnetic compatibility detection method. An electromagnetic interference test and an anti-electromagnetic-disturbance sensibility test and modeling simulation are respectively performed on a power battery, the two tests are respectively carried out with additional arrangement and without additionally arrangement of an electromagnetic screening apparatus and are also respectively carried out at a static state and a driving state, and various results are compared. According to the invention, comprehensive electromagnetic compatibility detection can be performed on the power battery at all work states, and influences exerted by ambient conditions where the power battery is disposed during work on the electromagnetic compatibility performance of the power battery can be accurately known, such that design personnel can optimize the structure and the electronic system of a new energy automobile according to test results, a guarantee is provided for safe driving of the new energy automobile, and a powerful probe means exploration means is also provided for research and development of a new generation of power batteries; and the tests are conducted according to national standards, the operation is standard, the results are easily analyzed, and the electromagnetic compatibility of the power battery can be accurately determined.