Vehicle signal lamp structure and vehicle daytime running lamp

The invention provides a vehicle signal lamp structure. The vehicle signal lamp structure comprises a light guide part, two light source modules and a collimating lens. The light guide part is provided with a strip-shaped light-emitting surface, light-in surfaces located on the two sides of the light-emitting surface and a light guide surface structure located below the light-emitting surface, the light guide surface structure gradually inclines upwards from one side of the light-in surface to the middle part of the light guide part, and the light guide surface structure comprises a light guide structure formed by a plurality of V-shaped microstructures. The light source module is arranged on the light incident surface of the light guide piece. The light-in surface of the collimating lens is located on the light-out surface of the light guide member. The light source received by the light inlet surface of the light guide member is reflected by the light guide surface structure and then is emitted towards the