A method and an apparatus for generating a shared encoder, and an electronic device are provided by the present application, which belongs to a field of computer technology. The method includes: sending by a master node a shared encoder training instruction to child nodes, so that each child node obtains training samples based on a type of a target shared encoder included in the training instruction; sending an initial parameter set of the target shared encoder to be trained to each child node after obtaining a confirmation message returned by each child node, so that the initial parameter set is trained by each child node with its own training samples; obtaining an updated parameter set of the target shared encoder returned by each child node; determining a target parameter set corresponding to the target shared encoder based on a first preset rule and the updated parameter set of the target shared encoder returned by each child node. As a result, the method for generating the shared encoder may reduce the difficulty and cost of obtaining training corpus from a plurality of fields and improve the performance of the shared encoder.