Phototherapy device with negative ion release function

The invention relates to a phototherapy device with a negative ion release function, which is used in combination with a negative pressure cup and comprises a carrier, a phototherapy component, a negative ion component and a needle-proof cover. The carrier is arranged in the negative pressure cup and is provided with a panel; the phototherapy assembly and the negative ion assembly are both arranged in the carrier, the negative ion assembly is provided with a release needle, and the release needle extends out of the panel and is used for releasing negative ions; and the anti-needle cover covers the panel corresponding to the position of the release needle, so that the anti-needle cover covers the release needle. Therefore, the effect that the phototherapy assembly and the negative ion assembly are combined with the negative pressure cup for use can be achieved, and the effect that the anti-needle cover is used for effectively preventing the bulged part of the human body from being punctured by the release need