A method for controlling a fan coil, applied to a temperature control apparatus of a central air conditioner, wherein the temperature control apparatus is configured to be in a non-automatic working mode or in an automatic working mode, and characterized by comprising: in a case where the temperature control apparatus is in a non-automatic working mode, receiving a configuration instruction, and configuring a running state of the temperature control apparatus according to the configuration instruction; in a case where the temperature control apparatus is in an automatic working mode, collecting ambient temperature according to a set period; determining a change trend of the ambient temperature according to the collected ambient temperature; and configuring the running state of the temperature control apparatus according to the change trend of the ambient temperature; and sending a control signal corresponding to the configured running state to the fan coil connected with the temperature control apparatus according to the configured running state so as to enable the fan coil to start an action corresponding to the running state; wherein the running state comprises a cooling state, a heating state, and a ventilation state; wherein the configuring the running state of the temperature control apparatus according to the change trend of the ambient temperature comprises: in response to determining that the change trend of the ambient temperature is a decreasing trend, configuring the running state of the temperature control apparatus to the cooling state, and configuring a target cooling temperature; in response to determining that the change trend of the ambient temperature is an increasing trend, configuring the running state of the temperature control apparatus to the heating state, and configuring a target heating temperature; and in response to determining that the change trend of the ambient temperature is a flat trend, configuring the running state of the temperature control apparatus to the ventilation state. in a case where the temperature control apparatus is in a non-automatic working mode, receiving a configuration instruction, and configuring a running state of the temperature control apparatus according to the configuration instruction; in a case where the temperature control apparatus is in an automatic working mode, collecting ambient temperature according to a set period; determining a change trend of the ambient temperature according to the collected ambient temperature; and configuring the running state of the temperature control apparatus according to the change trend of the ambient temperature; and sending a control signal corresponding to the configured running state to the fan coil connected with the temperature control apparatus according to the configured running state so as to enable the fan coil to start an action corresponding to the running state; wherein the running state comprises a cooling state, a heating state, and a ventilation state; wherein the configuring the running state of the temperature control apparatus according to the change trend of the ambient temperature comprises: in response to determining that the change trend of the ambient temperature is a decreasing trend, configuring the running state of the temperature control apparatus to the cooling state, and configuring a target cooling temperature; in response to determining that the change trend of the ambient temperature is an increasing trend, configuring the running state of the temperature control apparatus to the heating state, and configuring a target heating temperature; and in response to determining that the change trend of the ambient temperature is a flat trend, configuring the running state of the temperature control apparatus to the ventilation state. in response to determining that the change trend of the ambient temperature is a decreasing trend, configuring the running state of the temperature control apparatus to the cooling state, and configuring a target cooling temperature; in response to determining that the change trend of the ambient temperature is an increasing trend, configuring the running state of the temperature control apparatus to the heating state, and configuring a target heating temperature; and in response to determining that the change trend of the ambient temperature is a flat trend, configuring the running state of the temperature control apparatus to the ventilation state.