To enable positive management of construction machines in a management center. There comprises an construction machine 1, and a management apparatus 20 for carrying out the transmission and reception of information with the construction machine 1 through a communication satellite 30 and a base station 32. The construction machine 1 comprises a memory 124 for storing operating information, information amount discrimination means 127 to discriminate if the operating information stored in the memory 124 reaches a fixed amount, information readout means 128 for reading out the operating information when the operating information stored in the memory 12 reaches the fixed amount, and a transmission section 184 for transmitting the operating information read out. The management apparatus 20 comprises a reception section 214 for receiving the operating information transmitted from the construction machine 1, a memory 208 for storing the operating information received, and data processing means 211 for carrying out data processing relative to the operating information.