肖戰體重是58千克。肖戰的父母原本想給肖戰取名為“肖贊”，但母親擔心“贊”字難寫，父親就把“贊”改成了“戰”。肖戰的父親很注重肖戰除了文化以外的興趣愛好培養，所以在肖戰小時候讓他學習很多東西，如畫畫、小提琴等。
2015年6月，素人養成勵志節目《燃燒吧少年》透過重慶工商大學老師給予的聯絡方式找到肖戰，邀請他參加；肖戰覺得可以嘗試，於是參加訓練營成為練習生；經過節目組不斷淘汰，肖戰以16名選手之一的身份錄製了《燃燒吧少年》節目；該節目於2015年11月21日在浙江衛視播出。12月31日，肖戰登上浙江衛視“奔跑吧2016”跨年演唱會，與隊友串燒表演林俊杰歌曲《凍結》並演唱節目主題曲《BeaMan》；這是肖戰首次公開亮相舞臺。
1、《陳情令》肖戰飾演魏無羨。
2、魏無羨立志一生鋤強扶弱，無愧於心。因陰鐵捲入紛爭，蓮花塢被溫氏覆滅，而他也被溫氏扔入亂葬崗。魏無羨艱難修成夷陵老祖，並在射日之徵中大殺四方，溫氏衰敗。由於魏無羨握有陰虎符，又保護溫氏無辜之人，與世家對立。後魏無羨被誣陷，師姐慘死，絕望之下魏無羨跳崖自殺。十六年後魏無羨復活，與藍忘機探查揭開真相。
相信自己的直覺
從未曾改變
最初的那張臉
經歷多少次更迭
太多無法預言
安靜跨越
迎接未來不管多遙遠
用特寫放大著每一天
每一刻都要燃燒沸點
That weve got one life one world
So lets come together
Well weather the storm
A rain of colors Look up to the sky
Were all made of shooting stars
We are made to love WOO OH
We are made to love WOO OH
We are made to love WOO OH
We are made to love
We are made to love
散落著的彩筆 空白的畫面
依舊在那邊
Then I would
Oh yes I would
用筆描繪現實與回憶的關聯
Then I would
Trust me I would
有過超越極限的瞬間
經歷過自己的改變
走過的痕跡變成光點
That weve got one life one world
So lets come together
Well weather the storm
A rain of colors Look up to the sky
Were all made of shooting stars
We are made to love WOO OH
We are made to love WOO OH
We are made to love WOO OH
We are made to love
We are made to love
生命 渺小不可思議
生活 絕不輕易放棄
眺望 做最真的自己 OH YEAH
明天 無論是雨或晴
擁抱 讓愛更有意義
世界 帶著愛去前進 OH
Cause weve got one life one world
So lets come together
Well weather the storm
A rain of colors Look up to the sky
Were all made of shooting stars
We are made to love WOO OH
We are made to love WOO OH
We are made to love WOO OH
We are made to love
We are made to love
We are made to love