Provided are a framework, a framework assembly, a coil assembly and an electronic expansion valve. The framework includes a framework body (10), a connecting part (20) and a pin socket (30), wherein a first end of the connecting part (20) is arranged on a peripheral surface of the framework body (10), the pin socket (30) is arranged at a second end of the connecting part (20) away from the framework body (10), the framework further includes at least one support part (40), and the at least one support part (40) is arranged on the connecting part (20), which can solve the problem of the poor waterproof effect of a coil assembly.