Two-dimensional　electron　gas　systems　modulated　by　a　lateral　magnetic　superlattice　are　proposed　and　the　related　magnetoresistance　effect　is　described　in　this　work.　It　is　found　that　the　magnetoresistance　(MR)　ratio　of　the　given　structures　depends　strongly　on　the　uniform　magnetic　field,　and　the　peaks　of　the　MR　ratio　depressed　linearly　with　the　increase　of　the　uniform　magnetic　field.　This　feature　can　be　utilized　in　practical　linear　magnetoresistance　(LMR)　devices.　(C)　2011　Elsevier　Ltd.　All　rights　reserved.