The invention relates to liquid fertilizer spraying equipment, in particular to liquid fertilizer comprehensive and fast spraying equipment for agricultural crop planting, and aims at solving the technical problems to provide the liquid fertilizer comprehensive and fast spraying equipment for agricultural crop planting with the advantages that the operation is simple; the spraying speed is high; the time and the labor are saved. In order to solve the technical problems, the invention provides the liquid fertilizer comprehensive and fast spraying equipment for agricultural crop planting. The equipment comprises a bottom plate and the like, wherein a spraying device is arranged at the left side of the top of the bottom plate; a swinging device is arranged at the right side of the top of the bottom plate; a spraying component of the spraying device is connected with a swinging component of the swinging device; the spraying device and the swinging device are matched. The liquid fertilizer spraying equipment achieves the effects that the operation is simple; the spraying speed is high; the time and the labor are saved.