The fairness value is the basis and soul of the construction of inquiry system. It is always a kind of legitimate request that the letter-writers or visitors choose the channel of inquiry system to seek fairness. However， there are many problems in the process of dealing with these letters and visits， such as being short of an effective system assurance， the lack of fairness in the dealing procedures， the deficiency of authorities in the result-processing and so on. At present， our government needs to overcome those problems through different measures to the inquiry system， such as: integrating the powers， perfecting the regulations， being strict of executive procedures， innovating working methods in order to maintain the value of fairness， and improving and perfecting our country’s letters and visits system.