1.Chiyambi cha Tsiku la Ntchito
Magwero a tchuthi cha Tsiku la Ntchito ku China adachokera pa Meyi 1, 1920, pomwe ziwonetsero zoyambirira za Meyi Day zidachitika ku China. Chiwonetserochi, chomwe chinakonzedwa ndi bungwe la China Federation of Labor Unions, cholinga chake chinali kulimbikitsa ufulu wa ogwira ntchito ndikuwongolera momwe amagwirira ntchito. Kuchokera nthawi imeneyo, Meyi 1 lakhala likukondwerera padziko lonse lapansi ngati Tsiku la Ogwira Ntchito Padziko Lonse, ndipo dziko la China lasankha tsikuli ngati tchuthi chovomerezeka kulemekeza ndi kuzindikira zopereka za ogwira ntchito m'gulu. ndi kukondwerera zomwe adachita. Panyengo ya Cultural Revolution kuyambira 1966 mpaka 1976, tchuthiyi idayimitsidwa chifukwa cha malingaliro a boma motsutsana ndi chilichonse chomwe chimawonedwa ngati mabwinja. Komabe, pambuyo pa kukonzanso kwa 1978, tchuthicho chinabwezeretsedwanso ndipo chinayamba kuzindikiridwa kwambiri.Lero, tchuthi la Tsiku la Ntchito ku China limatenga masiku atatu kuyambira May 1 mpaka May 3 ndipo ndi imodzi mwa nthawi zoyendayenda kwambiri pachaka. Anthu ambiri amapezerapo mwayi pa nthawi yopuma kuti ayende kapena kukhala ndi mabanja awo.Ponseponse, tchuthi cha Tsiku la Ntchito ku China sichimangokhala ngati chikondwerero cha zopereka za ogwira ntchito komanso chikumbutso cha kufunika kopitiriza kuwongolera mikhalidwe yogwirira ntchito ndi kuteteza ufulu wa ogwira ntchito.