The invention discloses a radiation intensity prompt method and apparatus. The method comprises the following steps: determining a target light radiation parameter value; determining whether a light radiation parameter value received by a user reaches the target light radiation parameter value; and when the light radiation parameter value reaches the target light radiation parameter value, sending prompt information. According to the technical scheme, when the light radiation parameter value received by the user reaches the target light radiation parameter value, through sending the prompt information, the user can be enabled to receive a proper sunbath and current skin color is enabled to be converted to expected preset skin color according to expected progress, the user can also be prompted of timely end of radiation, such that skin is prevented from aging and even increased possibility of a skin cancer due to harm caused to the skin by too long radiation time, and accordingly, health of the user is prevented from being affected.