The utility model discloses a prefabricated plastic court. The device comprises a No.1 spliced plastic plate, a second splicing plastic plate is arranged on one side of the first splicing plastic plate. A third splicing plastic plate is arranged at the lower end of the first splicing plastic plate; a fourth splicing plastic plate is arranged at the lower end of the second splicing plastic plate; afirst clamping block is fixedly installed on the outer surface of the lower end of the first splicing plastic plate, a first clamping groove is formed in the outer surface of one side of the first splicing plastic plate, a second clamping block is fixedly installed on the outer surface of the lower end of the second splicing plastic plate, and a third clamping block is fixedly installed on the outer surface of one side of the second splicing plastic plate. The prefabricated plastic court disclosed by the utility model is provided with the four groups of plastic splice plates, the cushion layer and the support framework, so that the laying difficulty can be reduced, the bonding stability can be improved, the structural stability can be improved, and a better use prospect is brought.