Objective To investigate the effect of Shoutai pills on CHL chromosomal aber-ration. Methods The CHL cell was poisoned aberration by Shoutai pills in different doses in vitro with cell training techniques, and then, the chromosomal variety of CHL was observed. Results All the CHL chromosomal aberration rate was normal in Shoutai pills with 5000, 2500 and 1250μg/mL, and taking timbers after 24 h and 48 h, mixing into S9 or non-mixing into S9, in all Shoutai pills groups. Conclusions The Shoutai pills are not genotoxicity to ind...