The Thai youngster who is already a first team regular for the senior side will be in Japan until November 11 in hopes of sealing a permanent move
The diminutive attacking player will be the second Southeast Asian player to make his way to the J-League following Le Cong Vinh's spell at Consadole Sapporo. Malaysia's Wan Zack Haikal meanwhile plies his trade with lower league side FC Ryuku.
Chanathip, better known as Messi J in his homeland reached Narita Airport on Monday morning and will begin a one-week trial beginning Tuesday, November 5.
"I really don't know what lies ahead but I'll give my all; I want to prove what I can do, and what Thai players are capable of," Chanathip told Goal before his departure on Sunday night.
Shimizu and BEC Tero share a partnership deal and the forward who has been earmaked as one of Thailand's most promising young players will be travelling alone to Japan.
"I have to admit that I still worry, but this is J's dream, in the end I'm glad and proud for my son having overseas trials," Chanathip's father Kongpob Songkrasin told Goal.
"I never expected something like this to come this fast. At first I just wanted him to serve our country as National Team player. To be famous and attract foreign clubs is unbelievable.
"I've always wanted him to play in another country but Japan is beyond me and my son's expectation. The contract would perfectly fulfill my son's dream."