A manufacturing method for integral forming of an upper plate and a lower plate of a matched rock structure plane includes the following steps that (1) an upper plate structure plane shape and a lower plate structure plane shape are selected, a corresponding upper plate structure plane formwork and a corresponding lower plate structure plane formwork are selected according to experimental testing requirements, and it is required that the upper plate structure plane formwork and the lower plate structure plane formwork are matched mutually; (2) the upper plate structure plane formwork and the lower plate structure plane formwork are assembled; (3) the upper plate structure plane formwork and the lower plate structure plane formwork which are connected in a back-to-back abutting mode are connected and fixed to the middle of a bottom board; (4) a left side board and a right side board are placed and fixed on the left side and the right side of the bottom board respectively; (5) a front side board and a back side board are placed and fixed on the other two edges of the bottom board; (6) a release agent is smeared; (7) materials are poured; (8) jolt ramming is carried out; (9) the formworks are dismounted; (10) curing is conducted; and (11) after curing is completed, the upper plate and the lower plate of a structure plane sample are taken out of a curing chamber, and the upper plate and the lower plate of the structure plane are assembled according to the mode that the lower plate is located below the upper plate, so that the matched structure plane sample is formed. The method has the characteristic that the procedures are simple, the effect is good and the period is short.