A skill evaluation system comprising: a remote operation device configured to allow an operator to remotely operate a construction machine, wherein the remote operation device includes a mode execution unit that is configured to execute a selected mode to be selected from an actual work mode of actually executing the remote operation of the construction machine, a simulation mode of executing, by a construction machine model in a virtual site environment for simulating an operation of the construction machine, a simulation of the remote operation of the construction machine, and a test mode of executing a predetermined test by actually executing the remote operation of the construction machine or by executing the simulation of the remote operation of the construction machine; and a server communicatively connected to the remote operation device, wherein the server includes: an acquisition unit configured to acquire an operation record of the remote operation device by the operator in the actual work mode and the simulation mode, and a test result of the predetermined test for ensuring that a skill level of the operator for the remote operation is equal to or higher than a certain level, wherein the operation record includes an actual work record obtained by actually executing the remote operation of the construction machine and a simulation record obtained by executing the simulation of the remote operation of the construction machine; a work history database (17, 18, 19) configured to store the operation record and the test result as a work history; a skill level calculation unit configured to calculate the skill level of the operator for the remote operation based on the work history stored in the work history database (17, 18, 19); and a presentation unit configured to present the skill level. a remote operation device configured to allow an operator to remotely operate a construction machine, wherein the remote operation device includes a mode execution unit that is configured to execute a selected mode to be selected from an actual work mode of actually executing the remote operation of the construction machine, a simulation mode of executing, by a construction machine model in a virtual site environment for simulating an operation of the construction machine, a simulation of the remote operation of the construction machine, and a test mode of executing a predetermined test by actually executing the remote operation of the construction machine or by executing the simulation of the remote operation of the construction machine; and a server communicatively connected to the remote operation device, wherein the server includes: an acquisition unit configured to acquire an operation record of the remote operation device by the operator in the actual work mode and the simulation mode, and a test result of the predetermined test for ensuring that a skill level of the operator for the remote operation is equal to or higher than a certain level, wherein the operation record includes an actual work record obtained by actually executing the remote operation of the construction machine and a simulation record obtained by executing the simulation of the remote operation of the construction machine; a work history database (17, 18, 19) configured to store the operation record and the test result as a work history; a skill level calculation unit configured to calculate the skill level of the operator for the remote operation based on the work history stored in the work history database (17, 18, 19); and a presentation unit configured to present the skill level. an acquisition unit configured to acquire an operation record of the remote operation device by the operator in the actual work mode and the simulation mode, and a test result of the predetermined test for ensuring that a skill level of the operator for the remote operation is equal to or higher than a certain level, wherein the operation record includes an actual work record obtained by actually executing the remote operation of the construction machine and a simulation record obtained by executing the simulation of the remote operation of the construction machine; a work history database (17, 18, 19) configured to store the operation record and the test result as a work history; a skill level calculation unit configured to calculate the skill level of the operator for the remote operation based on the work history stored in the work history database (17, 18, 19); and a presentation unit configured to present the skill level.