Remote operation system for work machine and remote operation method for work machine

This remote operation system for a work machine is provided with: a remote operation device for generating an operation signal for remotely operating the work machine; an operation command transmission unit that transmits an operation command on the basis of the operation signal; and an operation control unit that controls the work machine such that a first operation speed indicating an operation speed of the work machine when communication is established between the work machine and the remote operation device is slower than a second operation speed. The second operating speed indicates a predetermined operating speed associated with an operation amount of the remote operation device in advance. 本发明的作业机械的远程操作系统具备：远程操作装置，其生成用于远程操作作业机械的操作信号；操作指令发送部，其基于操作信号，发送操作指令；及动作控制部，其以使第一动作速度比第二动作速度慢的方式控制作业机械，所述第一动作速度表示作业机械与远程操作装置之间建立通信时作业机械的动作速度，所述第二动作速度表示预先与远程操作装置的操作量建立了对应关系的规定的动作速度。