A method for processing information in an intelligent traffic control system based on cloud computing comprising at least a plurality of control servers, and a plurality of IP-enabled field devices, or at least a plurality of control servers, a plurality of IP-enabled field devices, and a central system, wherein the central system is connected with the control servers over a network, and the IP-enabled field devices are connected with the control servers over IP address based broadband buse wherein the method comprises: distributing (402,502), by a first node, subscription messages to the control servers to instruct the control servers to return, by transmission, information acquired by the IP-enabled field devices local to the control servers, and corresponding processing results to the first node upon determining that a preset condition indicated by the subscription messages is satisfied, wherein the first node is the central system, or any one of the control servers; wherein the IP-enabled field device refers to a device, distributed at a respective traffic crossing, configured to acquire data of the traffic crossing, to monitor and control in real time a traffic condition at the traffic crossing; receiving (405,505), by the first node, the information acquired by the IP-enabled field devices, and the corresponding processing results, returned by the control servers; and analyzing (406, 506), by the first node, the obtained information acquired by the IP-enabled field devices, and corresponding processing results, generating a corresponding control strategy based upon a result of analyzing, and enforcing the generated control strategy in a case that the first node is the any one of the control servers, or issuing the generated control strategy to a corresponding control server in a case that the first node is the central system, so that the corresponding control server receives and enforces the generated control strategy; wherein whether the preset condition is satisfied is determined by any one of the control servers after the any one of the control servers analyzes information acquired by one or more corresponding IP-enabled field devices; wherein the preset condition comprises one or any combination of the following conditions: that there is a traffic jam occurring around the one control server; that there is a traffic accident occurring around the one control server; that the amount of the information acquired by the IP-enabled field devices, and the corresponding processing result stored in the one control server is above a preset threshold; and that there is an urgent event occurring around the one control server or the first node. distributing (402,502), by a first node, subscription messages to the control servers to instruct the control servers to return, by transmission, information acquired by the IP-enabled field devices local to the control servers, and corresponding processing results to the first node upon determining that a preset condition indicated by the subscription messages is satisfied, wherein the first node is the central system, or any one of the control servers; wherein the IP-enabled field device refers to a device, distributed at a respective traffic crossing, configured to acquire data of the traffic crossing, to monitor and control in real time a traffic condition at the traffic crossing; receiving (405,505), by the first node, the information acquired by the IP-enabled field devices, and the corresponding processing results, returned by the control servers; and analyzing (406, 506), by the first node, the obtained information acquired by the IP-enabled field devices, and corresponding processing results, generating a corresponding control strategy based upon a result of analyzing, and enforcing the generated control strategy in a case that the first node is the any one of the control servers, or issuing the generated control strategy to a corresponding control server in a case that the first node is the central system, so that the corresponding control server receives and enforces the generated control strategy; wherein whether the preset condition is satisfied is determined by any one of the control servers after the any one of the control servers analyzes information acquired by one or more corresponding IP-enabled field devices; wherein the preset condition comprises one or any combination of the following conditions: that there is a traffic jam occurring around the one control server; that there is a traffic accident occurring around the one control server; that the amount of the information acquired by the IP-enabled field devices, and the corresponding processing result stored in the one control server is above a preset threshold; and that there is an urgent event occurring around the one control server or the first node. that there is a traffic jam occurring around the one control server; that there is a traffic accident occurring around the one control server; that the amount of the information acquired by the IP-enabled field devices, and the corresponding processing result stored in the one control server is above a preset threshold; and that there is an urgent event occurring around the one control server or the first node.