Construction machine and remote control terminal and remote control system thereof

The invention relates to the technical field of construction machines and discloses a construction machine and a remote control terminal and remote control system thereof. The remote control terminal comprises a display unit used for displaying controllable information of a controlled object of the construction machine, an operating unit used for enabling an operator to perform key operation or touch operation on the controllable information, a generating unit used for generating a corresponding control demand to the key operation information or touch operation information of the operator, and a transmitting unit used for transmitting the control demand to the controller of the construction machine. According to the remote control terminal, provided by the embodiment of the invention, the operator can hold the remote control terminal by hand and freely selects a favorable position to control the operation of the construction machine so as to solve the problem of fixed operation and control in the prior art, make the operation and control angle more visual, therefore, not only the timeliness, safety and accuracy of control are improved, but also the service efficiency of the construction machine is increased, and accordingly, the economic benefits of construction enterprises are increased.