A deployable mesh antenna based on dome-type tensegrity includes: a wire mesh reflector, a dome-type reflector support system, and a peripheral deployable truss which are coaxially arranged; the peripheral deployable truss includes: a annular main rod and end-to-end truss units disposed on the main rod; an outermost cable boundary of the dome-type reflector support system is fixedly connected to the peripheral deployable truss, and the dome-type reflector support system includes: an inner strut ring, an outer circumference of the inner strut ring is connected to radial rib units, each radial rib unit is arranged at a radial direction of the inner strut ring, and the radial rib units are connected through hoop cables; the wire mesh reflector is covered on the dome-type reflector support system to form a parabolic structure, the wire mesh reflector is petal-shaped, and the wire mesh reflector has a grid structure.