The utility model discloses a personnel positioning and statistics system. The system comprises a network coordinator; terminals which are used for wearing by personnel and are distributed at construction fields; relays which are distributed at the construction fields, employ a wireless communication standard, carry out relaying on terminals distributed outside an effect distance of the network coordinator or carry out relaying among the relays, and are used for wireless connection between the terminals and the network coordinator; and a monitoring center which is connected with the network coordinator and obtains the access path number of the terminals and the distribution of matched relays. The personnel positioning and statistics system can rapidly count the personnel and approximately position the positions of the personnel, thereby facilitating arrangement at the construction fields.