The invention discloses a high-voltage direct-current transmission valve cooling system's working condition prediction and fault heads-up platform, comprising: a data processing module and a data exchange module in signal interconnection with the data processing module. The data exchange module is further connected with a teaching staff working module used for teaching, a learner training module used for learning, a printing module used for printing results, and a simulation mechanism used for simulating data. According to the invention, on the basis of the historical running data and the defect conditions and in combination of the actual running data analysis, the working conditions are predicted and fault heads-up research becomes possible so as to provide reference for routine maintenance. At the same time, through the establishment of a simulated training platform similar to an actual converter valve cooling system, the client training requirement can be simulated in a true manner and the full-life cycle of various components can be managed so as to reduce the occurrence of fault and to speed up the fault processing.