Objective: To observe the anti- tumor effects of Chrysomya megacephala( Fab.) Extracts LXZ- 1A in S180 tumor- bearing mice and to preliminarily explore its mechanism of action. Method: Mice were made into S180 solid tumor model,grouped and administered with Chrysomya megacephala( Fab.) extracts( 0. 4 ~ 2. 5 g / kg) by intraperitoneal injection. Inhibition of tumor growth and regulation of the immune system of LXZ- 1A alone or combined with anticancer drug cyclophosphamide were observed. Result: The tumor gr...