Constructing the digital learning environment for ubiquitous learning and asynchronous distributed learning has opened up immense amounts of concrete research. However, current digital learning environments do not fully fulfill the expectations on supporting interactive group learning, shared understanding and social construction of knowledge. This paper introduces cloud computing to the construction of the digital learning environment for its on-demand services with high reliability, scalability and availability in the distributed environment. Then a digital learning environment based on cloud computing (DLECC) is proposed, including the architecture, co-construction and sharing model, and incentive mechanism of DLECC. Finally, an Educational Technology Space (ETS) platform under the concept of DLECC is constructed and applied to the educational technology training for 110 teachers from primary and secondary schools. The experimental results demonstrate that the co-construction and sharing model and incentive mechanism of DLECC may provide meaningful learning support and interactive communities and promote the co-construction of befitting educational resources.