Callum Robert Hunt (28) and Graham Sinclair Benson Dias (32), appeared before Commissioner Sir William Bailhache – sitting with Jurats Charles Richard Blampied and Paul Nicolle – in the Royal Court on Friday.
Both men pleaded guilty to a count of importing MDMA into the island in October 2018.
Hunt separately pleaded guilty to a count of possessing cannabis resin with intent to supply.
He also pleaded guilty to one count of possessing a Class B drug, 4-Chloroethcathinone, one count of possessing a Class B drug, N-Ethylpentylone, and one count of possessing MDMA.
Benson-Dias pleaded guilty to possessing MDMA with intent to supply.
All offences happened on 11 October 2018.
Both men have been remanded in custody until 3 February 2022, when they will be sentenced by the Superior Number of the Royal Court, which deals with the most serious offences.