The invention discloses a service choreography method and device, and relates to the technical field of computers. A specific embodiment of the method comprises the following steps: acquiring preset service configuration information according to an interface name and a service input parameter in a calling request; wherein the service configuration information comprises service mapping information, service calling information and a service interface execution sequence; obtaining a corresponding service processing script according to a script address in the service mapping information, grouping service interfaces of the service calling information according to a service interface execution sequence, and generating a task queue by taking the service interfaces belonging to the same group as task nodes; according to a service interface execution sequence of service interfaces in the task nodes, pulling the task nodes from the task queue, and executing the service interfaces of the task nodes to obtain a return result; and assembling the returned result by using the service processing script, and returning an assembling result. According to the method, the flexibility of service calling is improved, the development cost is reduced, and the product updating period is prolonged.