Portable surveying and mapping tool

The utility model provides a portable surveying and mapping tool, relates to surveying and mapping tool technical field, including surveying and mapping board, placing groove, threaded rod, rotary block, press plate, limit block, limit subassembly and support subassembly, the inside of surveying and mapping board is provided with placing groove, the inner wall of placing groove is rotatingly connected with threaded rod, threaded rod penetrates the inner wall of placing groove and extends to the outside of surveying and mapping board. According to the surveying and mapping board, paper can be placed in the surveying and mapping board through the cooperation of the placing groove, the threaded rod, the pressing plate and the limiting block, and meanwhile the paper is pressed to be straight and fixed, so that the paper and surveying and mapping tools do not need to be carried separately, space is saved, meanwhile, the surveying and mapping tools and the paper are convenient to carry, and the surveying and mappin