Abstract: A golf tee, which is decomposable in the soil, comprises a lower penetration portion with a sharp cone-shaped tip and an upper carrier portion connected with the penetration portion for carrying a golf ball thereof on top. The penetration portion further has a plurality of exterior reinforce ribs located length-wise to the tip. The carrier portion further has a round hollow cross section and has a plurality of interior radial reinforce thin walls to divide the interior space of the carrier portion into several sub-spaces. The golf tee is characterized in that, while in a driving operation, the carrier portion will deform elastically and accordingly to a club strike.