Medan Barat District have many environmental problems includes unoptimal waste management which is resulted by a large number of trash. The large number of trash is not well transported and the area serviced by waste managements are 9 points of temporary landfill which is the waste volume of each temporary landfill point is different, this study applies Floyd Warshall method to determine the waste transport route in Medan Barat District. This method allows the determination of routes by taking into vehicle capacity and volume of waste at each polling station. The data used is the distance between the pool with the temporary landfills point and the distance between the temporary landfills points. The results obtained in this study that total distance of all trucks carried out in Medan Barat District is 415 km and after using Floyd Warshall method, a total distance has been 387,11 km and total saving distance is 6,7%. Total cost has spent in Medan Barat District about Rp.712,000 per day and after using Floyd Warshall method, total cost has been Rp. 664,000 per day and total cost saving 6,7%. Based on the result, it indicates that the route made using Floyd Warshall method produces a better trash hauling route.