The invention discloses an air-conditioner energy conservation and temperature control method, an air-conditioner and a storage medium which are applied to temperature control over the indoor environment. The method includes the following steps that the initial indoor temperature before temperature control, the initial outdoor temperature before temperature control and the target temperature set by a user are obtained, and a temperature control curve is built according to the initial indoor temperature, the initial outdoor temperature and the target temperature; a compressor is controlled to start to run with a preset starting frequency, and the indoor temperature and the synchronization curve temperature the same as the newly-obtained indoor temperature on the temperature control curve intime value are continuously obtained in the temperature control process according to the preset obtaining rule; and the running frequency of the compressor is adjusted according to the newly-obtainedindoor temperature and the newly-obtained synchronization curve temperature. According to the air-conditioner energy conservation and temperature control method, the air-conditioner and the storage medium, energy saving in the air-conditioner temperature control process is improved; and meanwhile, the comfort of the user indoors is improved.