how long will it takes to get working visa im a filipino here in hongkong i want to work in china

It takes a long time (even a few months) to prepare the required documents for work visa application, such as the Alien Employment License and Invitation Letter of a Duly Authorized Unit, your employer should obtain the two documents for you. Once all the requirements for Z visa are provided, it takes 4 working days for the embassy to process work visa.