A method for carrying out message simulation in network includes collecting network node existed in network environment and selecting partial or all network node as per requirement, distributing task to be tested onto selected network node to generate chain list of network node information and to generate configuration information of each network node being up-sent to relevant network node for setting up connection to each other between network nodes according to configuration information in order to carry out massage transmission, laying product to be tested in network environment existed by node for realizing test purpose.