Is it strict to apply for Liaoning hukou to take the college entrance examination card this year?

Very strict. I took the college entrance examination in Liaoning this year. There is a classmate in my class whose registered permanent residence is in other provinces, but after studying in Liaoning for three years, he can't take the college entrance examination in Liaoning. He will repeat his studies for one year and take the exam in the original province next year, so I suggest you don't take risks, and as far as I know, you must have at least two years' residence to take the college entrance examination in Liaoning.