Abstract: A modular pallet device includes a plurality of spaced-apart longitudinal first bars having a plurality of longitudinally spaced-apart mounting grooves extending inwardly from top faces thereof, a plurality of spaced-apart longitudinal second bars connected to the first bars, and a plurality of interlocking units provided on and interlocking the first and second bars and including slots and projections. Each second bar has opposite first and second end portions. The first end portions of the second bars are respectively received in the mounting grooves of one of the first bars. The second end portions of the second bars are respectively received in the mounting grooves of the other one of the first bars.