Changes in the kind and level of endogenous gibberellins (GAs) in the developing liquid endosperm of tea (Camellia sinensis L.) were investigated. Gibberellin A1 (GA1), GA8, GA19, GA20, and GA44 were identified by GC-MS or GC-SIM. Besides these early C-13 hydroxylated GAs, GA3, iso-GA3, and CA38 were also identified. Of these GAs, GA1, and GA3 were the major gibberellins. The levels of these GAs were at a maximum in the globular embryo stage and then decreased rapidly during embryo maturation.