The invention relates to a large cable laying method. The large cable laying method is characterized by comprising steps of: a, providing a winching machine and a cable pulley; b, arranging the winching machine at one end of a cable laying line according to a filed situation; c, arranging linear cable pulleys, a turning type cable pulley and width wheel hanging type cable pulleys; and d, carrying out deployment of constructors and division operation for cable laying. The large cable laying method has advantages of reasonably-designed cable laying steps, simple operation, small engineering safety risk, labor-saving and time-saving performance, greatly-shortened construction period and reduced engineering construction cost.