Control method and control device of engine oil supply system, processor and vehicle

The invention provides a control method and device of an engine oil supply system, a processor and a vehicle, and the control method of the engine oil supply system comprises the steps that under the condition that the current working state of an engine is a starting difficulty state, oxygen content values in a high-pressure oil rail and an oil sprayer split charging assembly are obtained; based on the oxygen content value, a first control instruction is generated, and the first control instruction is used for controlling the micro air extracting pump to conduct air extracting work; detecting the gasoline content in the micro air pump; and based on the gasoline content, a second control instruction is generated, the second control instruction is used for controlling the micro air extracting pump to stop air extracting work, the ignition program is started, and therefore the engine is separated from the starting difficulty state. The problem that in the prior art, part of air enters a high-pressure fuel oil pi