In order to meet the field rapid maintenance and support requirement for big and complicated airborne information equipment, an interactive maintenance device is designed. We construct an interactive maintenance aids platform based on integrated system and interactive electronic technical manual (IETM), which including portable maintenance aids (PMA) platform and the field of in situ test equipment. It reads BIT data from the equipment and drives field test equipment to acquire parameters with serial bus. It fulfills the functions, such as parameters acquisition, material lookup, code download, electronic curriculum and data synchronization. Application proves that the device is reliable and stable. Its indicators satisfy the field maintenance and fault diagnosis requirement for the equipment. It increases the maintenance and support efficiency.