The invention provides a train tractive force determination method and a train control system. The method comprises the following steps: acquiring at least one ramp message, wherein at least one rampmessage comprises a ramp message corresponding to one carriage of a train; and determining a target tractive force of the train according to at least one ramp message. The train tractive force determination method and the train control system which are provided by the invention have the advantages that the determined target tractive force is more accurate, safety and comfort of the train are improved, for example, the target tractive force determined by the train by adopting the method provided by the invention can avoid potential safety hazard such as car sliding due to too small tractive force on an upslope line with large slope and can also avoid impact on passengers due to too large tractive force.