A method for controlling access of machine communications, comprising: configuring (301, 501, 601, 701) an access priority level in a machine type communications device; a network side configuring (302, 503, 606, 707), according to current network load information, an access control parameter for an access priority level at which an access control needs to be performed, and sending (304, 504, 608, 708) the access priority level at which the access control needs to be performed and the access control parameter to the machine type communications device; and according to the access priority level of the machine type communications device and the received access priority level for which the access control needs to be performed and the access control parameter, the machine type communications device judging (305, 505, 609, 709) whether an access request can be initiated; wherein, the network side comprises a mobility management entity and an eNB; the step of sending the access priority level at which the access control needs to be performed and the access control parameter to the machine type communications device, comprises: the eNB sending the access priority level at which the access control needs to be performed and the access control parameter to the machine type communications device; the step of a network side configuring, according to current network load information, an access control parameter for an access priority level at which an access control needs to be performed comprises: the mobility management entity configuring, according to the current network load information of the mobility management entity and a network policy, the access control parameter of the access priority level at which the access control needs to be performed, and sending the access priority level at which the access control needs to be performed and the access control parameter to the eNB; or, the mobility management entity sending the current network load information of the mobility management entity to the eNB, and the eNB configuring, according to the current network load information of the mobility management entity and the network policy, the access control parameter of the access priority level at which the access control needs to be performed. configuring (301, 501, 601, 701) an access priority level in a machine type communications device; a network side configuring (302, 503, 606, 707), according to current network load information, an access control parameter for an access priority level at which an access control needs to be performed, and sending (304, 504, 608, 708) the access priority level at which the access control needs to be performed and the access control parameter to the machine type communications device; and according to the access priority level of the machine type communications device and the received access priority level for which the access control needs to be performed and the access control parameter, the machine type communications device judging (305, 505, 609, 709) whether an access request can be initiated; wherein, the network side comprises a mobility management entity and an eNB; the step of sending the access priority level at which the access control needs to be performed and the access control parameter to the machine type communications device, comprises: the eNB sending the access priority level at which the access control needs to be performed and the access control parameter to the machine type communications device; the step of a network side configuring, according to current network load information, an access control parameter for an access priority level at which an access control needs to be performed comprises: the mobility management entity configuring, according to the current network load information of the mobility management entity and a network policy, the access control parameter of the access priority level at which the access control needs to be performed, and sending the access priority level at which the access control needs to be performed and the access control parameter to the eNB; or, the mobility management entity sending the current network load information of the mobility management entity to the eNB, and the eNB configuring, according to the current network load information of the mobility management entity and the network policy, the access control parameter of the access priority level at which the access control needs to be performed. the mobility management entity configuring, according to the current network load information of the mobility management entity and a network policy, the access control parameter of the access priority level at which the access control needs to be performed, and sending the access priority level at which the access control needs to be performed and the access control parameter to the eNB; or, the mobility management entity sending the current network load information of the mobility management entity to the eNB, and the eNB configuring, according to the current network load information of the mobility management entity and the network policy, the access control parameter of the access priority level at which the access control needs to be performed.