The present invention enables a traveling vehicle body to accurately perform positioning. This working machine (1) is provided with: a traveling vehicle body (3)； a first positioning device (31) which includes a first antenna (31b) for receiving a first satellite signal transmitted from a GNSS satellite (101) and a first position calculation unit (31d) for performing positioning on the basis of the first satellite signal received from the first antenna (31b)； and a second positioning device (32) which includes a second antenna (32b) for receiving a second satellite signal transmitted from a QZSS satellite (102), a signal processing unit (32c) for generating correction information on the basis of the second satellite signal received from the second antenna (32b), a correction information output unit (32f) for transmitting the correction information to the first positioning device (31), and a second position calculation unit (32d) for calculating a second position on the basis of the second satellite signal received from the second antenna (32d) and the correction information, wherein the first positioning device (31) and the second positioning device (32) are installed in the traveling vehicle body, and the first position calculation unit (31d) performs positioning on the basis of the first satellite signal and the correction information transmitted from the correction information output unit (32f).La présente invention permet à un corps de véhicule en déplacement d'effectuer un positionnement avec précision. Cette machine de travail (1) est pourvue : d'un corps de véhicule en déplacement (3) ； d'un premier dispositif de positionnement (31), qui comprend une première antenne (31b), permettant de recevoir un premier signal de satellite émis à partir d'un satellite de GNSS (101), et une première unité de calcul de position (31d), permettant d'effectuer un positionnement en fonction du premier signal de satellite reçu en provenance de la première antenne (31b) ； et d'un
