In this study, effects of Malva parviflora hydroalcoholic extract was evaluated on memory alternation avoidance by step-through experiments on mice. The hydroalcoholic extract was prepared by maceration method in various doses (50, 100, and 200 mg/kg) then administered by gavage to mice. The groups were including control and three doses of the plant extract. After memory retention test in mice, results showed that the best memory improvement was observed in doses 100 and 200 mg/kg of the extract. Based on our results, it can be useful for improving the human memory, but it needs to make more researches on the plant at future.