In order to further explore the efficient generation methods of high order and fractional order vortex light, relevant computational programs are used to simulate the phase hologram of vortex light, and the optical path for generating vortex light using phase holography is constructed. The optical field distribution characteristics of integer and fractional order vortex light are studied. The experimental results show that when generating vortex light with orbital angular momentum topological charge l=1~200 integer orders, the central dark spot of the vortex beam pattern will increase with the increase of topological charge within a certain range. After exceeding a certain numerical range, the quality of vortex light limited by instrument parameters will decrease. When generating fractional order vortex light with l=8.1, 8.4 and 8.8, the phase of the vortex light exhibits a fractional distribution, and the radial gap gradually evolves towards integer order as the fractional order topological charge increases.