Abstract: This paper introduces the force measurement test difficult points of the H-6 components and external store:First,the design loads of balance isn't matched especially;Next,the model's tail likes a stern.If the routine supporting form is used,the string strength will not be enough and the test will not be safe.and the arrangement of balance wire will not be convenient.The structural form that the model's tail and string is an integral combination ensures the test safety as well as the convenience of the balances' wire arrangement in the total test scheme.At first,the balance's design ensures the test safety,then the use of double electric bridges raises the output of balance.The test result shows that the total test scheme is right,the balance's design is reasonable,the supporting stiffness is good and the measure precision is high.