Abstract: The research was made, using tall fescue (Festuca arundinacea) and Kentucky bluegrass (Poa pratensis) as experimental materials, on the changes of number of tillers, turf quality, turf color, ground biomass, soil compaction and troots distribution after different traffic stress treatments on them. It showed that light traffic could improve the number of tillers, turf quality, turf color and ground biomass, then improve the use value of turf. With the inereasing of traffic intensity, soil compaction of flat bed increased and 0-5 cm root distribution of Kentucky bluegrass and 10-15 cm root distribution of tall fescue were also changed .