The invention discloses a walking type horizontal directional drilling machine. After the structure is adopted, the invention has high construction plant adaptation capability because the walking type horizontal directional drilling machine has low unit area bearing capacity due to large contact area, good stability and easy drilling machine positioning operation and can greatly shorten the time of auxiliary construction operation, reduce the manual labor intensity, save the labor force and enhance the work efficiency, the usage applicability and the stability; any lifting equipment and carrier vehicles automatically climbing up and down are not needed during long-distance field transfer movement, and a construction field is specifically convenient to transfer; and on the other hand, because a walking type traveling mechanism of the walking type horizontal drilling machine has easy manufacture, low cost and convenient usage, maintenance and repair.