The present invention provides an operating information control system of a construction machine comprising: operating information collection device for collecting operating information regarding operation of a construction machine; storage device for storing the operating information; and transmission controller for transmitting the operating information read from the storage device to a first receiving device provided except the construction machine through a wireless radio, the transmission controller capable of transmitting the operating information to the first receiving device when receiving a transmission request from outside of the construction machine, or continuously for a predetermined period. Thereby, since the operating information of the construction machine is transmitted making use of a low power wireless radio without using a communication satellite or a public circuit network, lots of communication cost can be reduced.