The invention relates to an operation service platform system based on a Big Dipper RDSS/RNSS. The system comprises an RDSS terminal, an RNSS terminal, a BD/GPS satellite, a Big Dipper satellite main station, a network operator, a government platform, an enterprise operation center, a management agent and an operation service center. The RDSS terminal is in wireless microwave communication with the Big Dipper satellite main station through the BD satellite. The Big Dipper satellite main station communicates with the operation service center through the BD satellite and a special line of the network operator. The RNSS terminal is in wireless network communication with the operation service center through the network operator. The invention further discloses an operation service platform method based on the Big Dipper RDSS/RNSS. According to the system and the method, the defects of the operation platform system based on the RNSS and the operation platform system based on the Big Dipper RDSS are overcome, the advantages of the two systems are combined, the defects of the two systems are made up, and therefore the range of service objects is expanded.