According to the complexity of Armor new short wave/ultrashort wave carrier radio’s principle and structure, the height of the rate of false alarm, the difficulty of internal online modular’s detection, adopting technology of circuit intelligent detection, digital signal handling and database, develop the new portable maintenance system of short wave/ultrashort wave of radio with the computer of plain plate as core building hardware platform. The new maintenance system can carry out online property detection and fault location under condition of the internal modular of radio without disassemble. The radio maintenance information can stock for inquiry to solve the problem of Armor new short wave/ultrashort wave carrier radio lack of maintenance’s methods and the difficulty of guarantee.