The invention discloses an LED device and a manufacturing method thereof. The LED device comprises a cup-shaped bracket with a first conductive region and a second conductive region at the bottom, andan LED chip which is arranged at the bottom of the cup-shaped bracket. The positive electrode of the LED chip is connected with the first conductive region, and the negative electrode is connected with the second conductive region. The LED device further comprises a silicone layer which is arranged on the light emitting surface of the LED chip to isolate the light emitting surface, and white gluewhich is filled in the cup-shaped bracket and is located around the LED chip. According to the LED device and the manufacturing method thereof, which are provided by the invention, the white glue canbe effectively prevented from covering or even contaminating the LED chip, and the light emitting brightness of the LED device can be improved.