The invention provides a solar unmanned mini-tiller. According to the solar unmanned mini-tiller, by using a crawler device, the slope climbing performance is improved while the sinking rate is reduced; as a solar power generation mode is adopted on the aspect of a power supply, the waste of non-renewable resources can be reduced and the renewable resources can be sufficiently utilized on the onehand and no pollution and zero emission are realized on the other hand; and meanwhile, the power supply also supports a charging mode; furthermore, as an arranged camera monitors the surrounding environment and status at any time, the operation stopping of the solar mini-tiller caused by unmanned charging can be guaranteed and the labor intensity of an operator can be greatly reduced. The solar unmanned mini-tiller has the advantages of simple structure, convenient operation and so on and is suitable for large-scale promotion and application.