"Patent rights take effect from the date of publication.", "Patent protection period begins from the date of application." Are these two statements contradictory?

The two are not contradictory, they are different protections. During the application stage, others cannot use the patent you are applying for, but the patent application has not been successfully applied. It cannot be said to infringe the patent right. If you apply If the determination is successful, someone else has infringed your patent rights.

Article 42 of the "Patent Law of the People's Republic of China" The term of invention patent rights is twenty years, and the term of utility model patent rights and design patent rights is ten years, both starting from Calculated from the date of application.

1. The term of invention patent rights is 20 years.

2. The term of utility model patent rights and design patent rights is 10 years, both calculated from the date of application.