Abstract: As a new framework,the Test and Training Enabling Architecture(TENA) has some advantages obviously comparing with the traditional framework in test and training of range,and it will be applied widely.TENA meta-model is summarized,and the purposes,functions and communication mechanism of TENA middleware are introduced.Basing on above researches,the design of distributed interactive simulation program based on TENA has been designed,and UML is used to describe the object model and design flow of program,the work flow is introduced in detail,finally,the simulation result that certifies practicability of this program is given.