The invention discloses a communication method and system based on SOA configuration. The method comprises steps that an operation instruction issued by a host system is received; the operation instruction is assembled to be a communication message, and the communication message is issued to a communication management machine; the communication message uploaded by the communication management machine is received; the communication message is analyzed to acquire a message; the message is translated into a plaintext according to the plaintext configuration information, and the plaintext configuration information comprises the association information of the message and the plaintext; the plaintext is stored, and the plaintext is uploaded to the host system. The method is advantaged in that the software structure is made to be intelligible through utilizing the SOA configuration, software reusability and extensibility are improved, the system can be inquired from the external portion, thesystem changes according to demands, interface service is simple to call, module coupling property is weak, a message mode is flexible, problems of repeated data processing, redundancy and memory accumulation are solved through utilizing a real-time database and a secondary resolution module, data service pressure is reduced, and a host is convenient and simple to acquire data.