Intelligent control techniques are playing increasingly vital roles in modern unmanned systems. While Boolean logic, probability theory, and fuzzy logic are prominent reasoning methods for intelligent control, they each have their own limitations. To address these constraints, we introduce a novel inference system called Earthling Logic (EL) into the field of intelligent control. Specifically, we propose the Earthling Logic Control framework for unmanned systems.In the EL framework, all events are treated as statements with varying degrees of truth, known as credibility or truth value, which can accommodate both vagueness and randomness as specific attributes. We can establish the existence of this credibility under broad and general conditions. Furthermore, we have developed analytically simple and computationally efficient techniques for deducing the credibility of statements based on the credibility of their premises. The proposed EL has the potential to enhance artificial intelligence's reasoning capabilities and aid humans in understanding themselves from the perspectives of thought, language, and cognition.