Through the analysis of main difficulties of pits allocation for mountainous area transmission line, a new method for repetition measurement and pits allocation is proposed based on the global position system(GPS) and theodolite. It has been found that the method applied in the pits allocation for mountainous area transmission line is efficient, and of positive effect for lowering the construction cost, shortening the negotiation time for crop compensation, reducing external interference and dangers, and also protecting the environmental resources.