Microchannel Plate Photomultiplier (MCP-PMT) is a kind of photosensitive device with high gain, good detection efficiency, single photon detect ability, magnetic field resistance and ultimately good time resolution. In order to achieve single photon detection, two chips of MCP are often used together. In 2020, the proposal of roadmap toward the 10 ps TOF-PET challenge places higher requirement on the time performance of the photodetector. The single-chip MCP-PMT is expected to have a greater time resolution. In this manuscript, we introduce a new kind of single-chip MCP-PMT, with a TTS of 10 ps. The gain of the single-chip MCP-PMT was evaluated through relative tests, and the improvement of its performance was studied by investigating the voltage divider ratio.