A method for indicating random access resource, performed by a base station the method comprising: determining a first correspondence relationship between a downlink signal and a random access resource or a second correspondence relationship between a downlink channel and the random access resource, wherein the first correspondence relationship includes a one-to-one relation or a one-to-many relation or a many-to-one relation, and the second correspondence relationship includes a one-to-one relation or a one-to-many relation or a many-to-one relation; sending the first correspondence relationship and the downlink signal to a terminal under the condition that the first correspondence relationship is determined, to enable the terminal to determine the random access resource by the first correspondence relationship and the downlink signal; sending the second correspondence relationship and the downlink channel to the terminal under the condition that the second correspondence relationship is determined, to enable the terminal to determine the random access resource by the second correspondence relationship and the downlink channel; wherein the step of sending the first correspondence relationship and the downlink signal to the terminal under the condition that the first correspondence relationship is determined comprises: sending preset part of relations of the first correspondence relationship and the downlink signal to the terminal via at least two pieces of second system information if the first correspondence relationship is determined, wherein the preset part of relations of the first correspondence relationship sent via each piece of the second system information is different; wherein the step of sending (S 103) the second correspondence relationship and the downlink channel to the terminal under the condition that the second correspondence relationship is determined comprises: sending preset part of relations of the second correspondence relationship and the downlink channel to the terminal via at least two pieces of fourth system information under the condition that the second correspondence relationship is determined, wherein the preset part of relations of the second correspondence relationship sent via each piece of the fourth system information is different. determining a first correspondence relationship between a downlink signal and a random access resource or a second correspondence relationship between a downlink channel and the random access resource, wherein the first correspondence relationship includes a one-to-one relation or a one-to-many relation or a many-to-one relation, and the second correspondence relationship includes a one-to-one relation or a one-to-many relation or a many-to-one relation; sending the first correspondence relationship and the downlink signal to a terminal under the condition that the first correspondence relationship is determined, to enable the terminal to determine the random access resource by the first correspondence relationship and the downlink signal; sending the second correspondence relationship and the downlink channel to the terminal under the condition that the second correspondence relationship is determined, to enable the terminal to determine the random access resource by the second correspondence relationship and the downlink channel; wherein the step of sending the first correspondence relationship and the downlink signal to the terminal under the condition that the first correspondence relationship is determined comprises: sending preset part of relations of the first correspondence relationship and the downlink signal to the terminal via at least two pieces of second system information if the first correspondence relationship is determined, wherein the preset part of relations of the first correspondence relationship sent via each piece of the second system information is different; wherein the step of sending (S 103) the second correspondence relationship and the downlink channel to the terminal under the condition that the second correspondence relationship is determined comprises: sending preset part of relations of the second correspondence relationship and the downlink channel to the terminal via at least two pieces of fourth system information under the condition that the second correspondence relationship is determined, wherein the preset part of relations of the second correspondence relationship sent via each piece of the fourth system information is different.