The invention belongs to the technical field of an intelligent home control system, and discloses a wireless thermoelectric central control system and method based on intelligent home. A core processor of a solar water heater is combined with an energy-free electronic switch technology, a wireless control technology, a solar and electric energy hybrid control technology and a big data prediction technology to compare various detected water level, water temperature and temperature data of the solar water heater with set water level, water temperature and set temperature parameter data; and according to received key control instructions, selection for different working modes including a key mode, a Bluetooth mode, a timing mode and a hybrid mode is carried out, and adjustment for the workingmodes and parameters is realized. The system is developed on the basis of a single chip microcomputer and is designed by cooperating with auxiliary circuits such as a water body temperature sensor, awater level sensor, an environment temperature sensor, a logic control circuit, a voltage transformation and stabilization circuit, a wireless communication assembly, an energy-free electronic switchcircuit, an alarm prompt circuit and the like.