i have 28 Access point and all of it i have set it to static IP address, but i didn’t see any Mac address and IP address at DHCP server that related to my Access point.
So all your ips are all static, and none show up in your dhcp lease list? If I understand what you are saying, then everything is working good. 
ya.. none of it show up in my dhcp lease list. so it is normal it is?
yes, is normal. You can see mac-address and ip in arp table.
at DHCP
i am new to mikrotik. i thought it still will show at DHCP server, because some pc i set as static at DHCP there and i saw it at lease there.
you can create static leases, but that does not change anything on client side - it will still request lease and then instead of dynamic one you will get static lease (same IP every time unless you change something). That is different from static ip configuration where customer does not have to request anything from network.
As suggested already by others, you can see in ‘/ip arp’ what is roaming your network if static IP configuration is used.
I’ve connected an old tplink router with my hAP AC to eliminate wifi weak spot. Both router connected via lan port to lan port. On tplink side dhcp turned off, and static ip was assigned on the tplink. Everything, working as expected. I can login to tplink’s webconfig, internet working. But, coudn’t find its mac on dhcp/ arp table. That device is a ghost in the network. Mikrotik log only shows that defconf assigned an ip address to a mac address, that mac address is for the device , not for the router. So, how do I trace that router?
If your PC started off as DHCP and then you set it to a static IP, the old lease will still be shown until it expires.
ARP tables get populated as devices make connections to each other. If you want to see MAC address of a LAN device in router’s ARP table, you can ping the LAN device (/ping ). After that, consult ARP table (/ip arp print), you should be able to see MAC address which corresponds to . If it’s not there, this would generally indicate that device in question is behind some router or a proxy-ARP device (but that device would be shown in ARP table by having many IP addresses mapped to single MAC address).
Another possibility (but without IP addresses) is to check output of /interface bridge host print or /interface ethernet switch host print (the later in case when HW offload is active).