How can I disable syntax check for typescript?

You can do this on per-file basis using Hector icon in the lower right corner: open your file in editor,  click the Hector icon and then move the slider to change the  Highlighting level to None. See http://www.jetbrains.com/webstorm/webhelp/changing-highlighting-level-for-the-current-file.html

BTW, why do you need disabling it? Note also that when a file watcher is being used for compiling typescript, the errors highlighting from WebStorm is suppressed and the highlighting from the compiler is used instead.

Thanks for the reply but I need to disable syntax checking for all *.ts files. I'l try to find some plugins to solve my problem.

BTW, why do you need disabling it?

PhpStorm often finds "errors" which are not even exists in tsc.