From“Li Huailiang case” analysis，there are many reasons for the difficulty of“acquitted because of insufficient evidence”.Henan judiciary adhere to promote judicial justice by individual justice，establish and improve case identification and supporting mechanisms，and make acquittal to Li Huailiang because of insufficient evidence according to legal procedures statutory powers.Next it Should focus on the recognition mechanism from the individual justice and handling mechanism of suspected crime and supporting protection mechanisms，to explore the path of solving the difficult of“acquitted because of insufficient evidence”.