The present invention relates to an injectable anticancer composition for local administration comprising hydroxychloroquine. The anticancer composition shows an IC50 value against sarcoma-180 cells which is about 10 times lower than cisplatin as determined by the MTT assay in vitro suggesting that the anticancer composition has an excellent cytotoxic effect. Also the anticancer composition shows dose-dependent effects against solid cancer induced by sarcoma-80 cells in vivo. In addition the anticancer composition has the effect of extending the life expectancy of patients having ascites cancer induced by sarcoma-80 cells. Figure 1 is the representative figure.
