In order to decrease the high tracking precision press of free space optical communication

simplify the optical antenna structure and reduce the system size

a new specialized micro-channel plate-photomultiplier tube(MCP-PMT) using complex waveguide anode is first proposed in this paper

which could be used in free space optical communication system (FSO).First of all

from the view point of photomultiplier model of microchannel plate

the principle of new device is described and the effect of both transmission and position anode of complex waveguide anode to constraints of vacuum photomultiplier system is analyzed; Secondary

the device characteristic of the complex waveguide anode devices is investigated through analytical method of modulation transfer function(MTF)

and the corresponding relations between design parameters of device and imaging ability is given.Based on the above

constraint relation between high-speed signal detection and optical axis position are investigated and corresponding design and correction method of electro-optical system are derived.At last

this kind of new device is verified through experiment in the vacuum furnace.