The invention relates to the technical field of chemical experiment instruments, in particular to a test tube rack. The test tube rack comprises a base (1), a test tube rack body (2), stand columns (3) and test tube insertion holes (4). The two or multiple rows of test tube insertion holes (4) are formed in the test tube rack body (2). The stand columns (3) are arranged between the base (1) and the test tube rack body (2) as supports. Leakage grooves (5) are formed in the test tube rack body (2). Each leakage groove (5) is formed between the corresponding two rows of adjacent test tube insertion holes (4). The test tube rack further comprises white plastic plates (7). Each white plastic plate (7) is arranged on the base (1) through the corresponding leakage groove (5). The test tube rack has the beneficial effects that the white plastic plates of the test tube rack can be removed, and experimenters can compare experiment phenomena generated in test tubes at the two sides of each white plastic plate conveniently; rubber isolation pads on test tube bases play a buffering role, and the test tubes cannot be ruptured easily; and the test tube rack is easy to operate and great in practicability.