The embodiment of the invention discloses a UE (User Equipment)-aided method for adjusting the power control parameters of a PRACH (Packet Random Access Channel). The method comprises the following steps of: acquiring a detection variable of random access codes by base station equipment, counting the number of random access codes with overhigh power and the number of random access codes with normal power according to the relation between the detection variable and a detection threshold as well as a detection threshold increment, receiving RACH (Random Access Channel) measuring information from the UE, counting the number of random access codes with overlow power according to the RACH measuring information and acquiring access power statistic information according to the number of the random access codes with overhigh power, the number of the random access codes with normal power and the number of the random access codes with overlow power; judging whether the access power statistic information satisfies the adjustment condition of the power control parameters or not by the base station equipment; and adjusting the power control parameters of the PRACH by the base station equipmentaccording to an adjustment strategy set by the system if the adjustment condition of the power control parameters is satisfied. The embodiment of the invention can adaptively adjust the power controlparameters.