PURPOSE: To improve the soil dischrageability and traction performance by providing a soil discharge passage at least alternately of traction lugs in the vicinity of a width central part of an elastic crawler belt, and also providing at least alternately outer side traction lugs.

CONSTITUTION: In an elastic crawler belt 4, horizontal reinforcements 5 consisting of casting, sheet metal, hard resin, etc., are buried with a specific space in the lengthwise direction, a also traction lugs 6 are integrally protrusively provided in a grounding side overlapped with the horizontal reinforcement 5 in a projection condition. Engaging windows 7 for engaging teeth of a sprocket wheel are formed in a width direction central part of the crawler belt 4, between the horizontal reinforcements 5. In the elastic crawler belt 4 thus obtained, a soil discharge passage 8 is formed at least alternately of the traction lug 6 in the vicinity of a belt width central part, and also the traction lugs 6, placed in the outer sideward when they are mounted on a vehicle, are at least alternately provided, to form a part between these lugs as a side part soil discharge passage 9. In this way, the soil dischargeability is improved, so as to improve the traction performance.