The embodiment of the invention discloses a portable aerostat testing system. The portable aerostat testing system comprises a processing module, a display and input module, a power module and one ormore extension modules; the power module is configured to supply power to all the modules, connected with the power module, in the aerostat testing system; the extension modules are further connectedwith corresponding to-be-tested equipment and configured to obtain testing result information from the corresponding to-be-tested equipment and transmit the testing result information to the processing module; or the extension modules are configured to obtain testing information used for testing the corresponding to-be-tested equipment from the processing module, process the testing information and then send the testing information to the corresponding to-be-tested equipment to be tested, receive testing result information fed back by the corresponding to-be-tested equipment, and transmit thetesting result information to the display and input module to be displayed through the processing module. The problems that as for an existing aerostat testing mode, various types of testing devices are adopted, consequently carrying is inconvenient, and the using and maintenance costs of the testing system are increased are solved.