The invention discloses an electromagnetic shielding system of a measuring integration controller, and belongs to the technical field of electromagnetic shielding of electronic equipment of aerospace measuring systems. The electromagnetic shielding system comprises a power supply module, a data conversion module, a CAN (Controller Area Network) bus module, a data storage and integration module, a shielding board, gradient slope surface seams, a printed board electromagnetic compatibility design, an internal shielding bus and an electrical continuity design. The electromagnetic shielding system has the advantages that the system can increase reflection loss and transmission loss of a magnetic wave, reduce leakage of an electromagnetic wave, and improve internal and external electromagnetic shielding of a product; the product achieves modularization, universalization and productization; the boundary dimension of the product is reduced; the design cost is lowered; the quality of a signal between boards is improved; radiation formed by a conductor is reduced; an electromagnetic environment of a chip is improved; and signal attenuation and radiation interference are reduced.