A method for transmitting pathloss power threshold configuration information, the method comprising: a network side increasing or reducing a weighted sum value currently selected by a cell according to a scenario of resources which can be allocated in a current cell, updating a random access preamble group B power offset value and a power offset value between a random access preamble and a first scheduled transmission sent over uplink channel resources of the cell respectively according to an increased or reduced weighted sum value, sending the updated random access preamble group B power offset value and the updated power offset value between the random access preamble and the Msg3 to a terminal of the cell by the pathloss power threshold configuration information, wherein the weighted sum value is a weighted sum value of the random access preamble group B power offset value and the power offset value between the random access preamble and the Msg3, characterized in that, the step of the network side increasing or reducing the weighted sum value currently selected by the cell according to the scenario of resources which can be allocated in the current cell comprises: when the scenario of resources which can be allocated in the current cell is that the number of resource blocks which can be allocated to the Msg3 in the current cell is sufficient, reducing the weighted sum value currently selected by the cell; and when the scenario of resources which can be allocated in the current cell is that the number of resource blocks which can be allocated to the Msg3 in the current cell is insufficient, increasing the weighted sum value currently selected by the cell. a network side increasing or reducing a weighted sum value currently selected by a cell according to a scenario of resources which can be allocated in a current cell, updating a random access preamble group B power offset value and a power offset value between a random access preamble and a first scheduled transmission sent over uplink channel resources of the cell respectively according to an increased or reduced weighted sum value, sending the updated random access preamble group B power offset value and the updated power offset value between the random access preamble and the Msg3 to a terminal of the cell by the pathloss power threshold configuration information, wherein the weighted sum value is a weighted sum value of the random access preamble group B power offset value and the power offset value between the random access preamble and the Msg3, characterized in that, the step of the network side increasing or reducing the weighted sum value currently selected by the cell according to the scenario of resources which can be allocated in the current cell comprises: when the scenario of resources which can be allocated in the current cell is that the number of resource blocks which can be allocated to the Msg3 in the current cell is sufficient, reducing the weighted sum value currently selected by the cell; and when the scenario of resources which can be allocated in the current cell is that the number of resource blocks which can be allocated to the Msg3 in the current cell is insufficient, increasing the weighted sum value currently selected by the cell. when the scenario of resources which can be allocated in the current cell is that the number of resource blocks which can be allocated to the Msg3 in the current cell is sufficient, reducing the weighted sum value currently selected by the cell; and when the scenario of resources which can be allocated in the current cell is that the number of resource blocks which can be allocated to the Msg3 in the current cell is insufficient, increasing the weighted sum value currently selected by the cell.