The invention relates to the technical field of small computer workstations, in particular to an
air cooling and liquid cooling collaborative heat dissipation small computer
workstation which comprises a case, a mainboard unit and a
liquid cooling system. The mainboard unit is horizontally mounted in the mounting cavity, and the top of the mainboard unit is at least provided with a CPU module and a first patch element; the
liquid cooling system comprises a uniform temperature plate horizontally installed at the top of the mainboard unit, a heat dissipation frame horizontally installed in the installation cavity and covering the air outlet, a fan
assembly installed at the bottom of the heat dissipation frame and arranged at an interval from the uniform temperature plate up and down, and a water pump
assembly installed between the uniform temperature plate and the fan
assembly. Compared with the prior art, when the fan assembly works, external air flow is sucked into the mounting cavity from the bottom air inlet and finally exhausted from the top air outlet, so that a liquid cooling and
air cooling double-heat-dissipation structure is achieved, and the heat dissipation effect of the whole small computer
workstation is cooperatively improved.