The invention discloses 3D printing equipment based on the laminar plasma technology, and relates to the field of 3D printing. The equipment comprises a central controller, a portal frame, a driver and a printing operation table, and further comprises a printing head, a telescopic cylinder, a feeding device, a circulation water pump, a linear sliding table and a T-shaped sliding block corresponding to the linear sliding table. A beam of the portal frame is provided with sliding rails. The two ends of the linear sliding table are connected with the sliding rails through the sliding block. The printing head is connected to the T-shaped sliding block through the telescopic cylinder. The printing head is flexibly connected with the feeding device and the circulation water pump through a feeding pipeline and a water cooling pipeline. The printing operation table is provided with a rotary table with a fixed block. According to the 3D printing equipment, laminar plasmas are used as a heat source, the printing components can freely and flexibly move, and meanwhile a matched printing part is provided for adjustment.