The move brings an end to a frustrating time for the 22-year-old, who has struggled for playing time and form this season following an impressive time last term.
He made 16 league appearances for The Frogs in 2018-19, starting seven and scoring once.
"Levante UD and Dalian Yifang have reached an agreement for the transfer of player Emmanuel Okyere Boateng (Accra, 23-05-1996) to the Chinese club," the Spanish fold announced on Wednesday.
"The forward arrived at the Granota team in the summer of 2017 from Moreirense and, in the almost two seasons he has played in the Ciutat de Valencia team, he has played 50 games between LaLiga Santander and the Copa del Rey, in which he has scored eight goals.
"Levante UD would like to thank Emmanuel Boateng for his work and commitment during all this time and wish him luck in his new professional stage."
The attacker, who made his international debut against Japan in May last year, has three appearances and one goal for the Ghana.