The utility model discloses an instrument of experimental plot between roast tobacco field of rapid design, take scaled border positioning insertion rod including one, can be according to the high nimble adjusting device's of ridging the location degree of depth, border positioning insertion rod's upper end fixedly connected with border positioner can fix on the positioner of border and is used for the mark and fixes a position tobacco seedling row spacing rope and measurement rope that the experimental head of district is wide, has scribed two -sided scale with the plant spacing on the row spacing rope is restricted respectively. Compared with the prior art, the utility model, it is difficult to have solved between traditional roast tobacco field the design of experimental plot border right angle, and row spacing, plant spacing are easily fixed a position error, are transplanted to go and go skew scheduling problem with fertilizeing, and have the district set for fast and easily, structure and easy operation, low cost, application prospect advantage such as wide.